the problem with charts is they are fluid, not as specific as a normal person would like....say that's a 5/16 hole so get a 5/16 bolt. Charts may or may not get you in the park.
In the wood arrow world fluid is true. bows are different, shooters are different, how you have it setup etc etc...and if you're not careful the shafts you're buying can be out. Its all a fluid game, what SHOULD be the right spine isn't always what IS the arrow in the end. Don't loose any sleep over it....find it, be happy and drive on! doesn't matter what shaft material you're shooting. Once you buy from a supplier, buy from them always! Or buy/build a spine tester (which if you stay with woods I'd highly recommend)!
Next we run into consistency on shaft suppliers. Case in point I was buying some awesome POC tapered shafts, only to find out our spine testers were not calibrated the same. It was only a few pounds, but it showed in some applications, my go to bow I had down to a 2lb group for hunting. The other 3lbs of spine were my small game and target arrows. That bow was a hummer, its a shame its hanging on the wall these days! IF (when) I swapped suppliers, a 65 wasn't a 65, it was a 62 on my tester, without knowing that I'd have had some issues with broadheads at distance (though I only hunt to 30 I used to practice to 50, mostly for fun, but to check form as well)....flustering IF you don't have a spine tester! most are pretty close. And ALL are can be calibrated easily using known deflections!
Wood arrows are a love hate relationship....you'll love to hate them and hate to love them. There's a lot of tools most you can make you'll WANT (not always NEED) for building a quality set IF you go that route. A good crester, spine tester, grain scales, feather burners, taper tools, jigs for single or barrel tapering shafts (if you don't buy them that way)....don't get me started with paints/sealers. Its a LOT of fun, and can be a LOT of frustrating times, thankfully most guys are pretty open with their ideas on here and their systems. A lot of these tools you can buy down the road, some you'll likely need early on. A tapering jig of some kind, and a cut off tool of some kind (dremel jig works well) The rest are not needed right out of the gate...you'll need the large dip tube for sealing as well. Shorties are for dipping your caps.
Target burn is something you're not likely used too, and many others aren't these days mainly due to the mediums they shoot into. A block doesn't produce near the target burn a compress fiber bale does with similar finishes. HARD finishes (epoxy being number 1) produce little to none...where a water based poly will blow you're mind in the fiber bales. Bars of soap become common tools in your backquiver lol.
Don't over look them, they are easily tuneable just as much as carbon or aluminum.
Ever since Easton went after the federal excise tax and jacked arrow shaft prices sky high buying quality shafts for cheap has become tough. The days of 50c shafts or so are gone! I was buying fletched ready to shoot shafts at a buck a pop, good stuff back when I started this game. And that's by no means cheap compared to some of the old timers on here when Acme was in their hayday!
This is the main issue with wood...cost compared to alum and carbon vs durability. you have to really WANT to shoot wood! I myself will likely never make the swap to carbon/aluminum, just not my cup o tea.
As for spines, I think stumpkiller nailed the 3 I'd try...though I'd guess its going to be somewhere in the 60-70lb range. you may need the 70-75's....depends on how well you shoot.
I used to have a set of test shafts laying around, think I still do...if you can't find something yell. My hunting rooms a mess going through stuf to sell right now. I'm not sure the lengths, I used to have one ever 1/2" from 26-full length in the 40-70lb spine groups. Made tuning people fast and easy! Simple change of tips or length adjustments and you'd be done fast.
Get ready for a ride! it's an awesome one...I've been shoot woods since I was a kid...I'm by no means old, but I wouldn't trade it for any alum/carbon on the market! To each their own.