canuck,
First of all, the 4570 is a nice old cartridge.
My advice is get one bare arrow and play around with it. There is no magic formula due to so many different bows and draw styles. You may end up screwing up at least one arrow (but can save it for times where losing an arrow is likely). Not much is gonna beat bare shaft tuning with the bow you intend to shoot (wait till you get it to finish your arrows). You can get away with a higher spine arrow like a 500 if you go longer and more point weight, as it softens the spine. But it sounds like you are on the right track.
10.5 gpi seems pretty good, and will give you a little more penetration with the lighter poundage. I shoot 10-11 or so in heavier bows for hunting.
Please don't use "lube" on your carbon arrows - just pull the suckers out! Turn the target up if you have to.
Because it sounds like you are new, the last thing I'll say is not too worry too much about getting your arrows perfectly spined - 5" feathers on a 600 will get them flying decent. When you are first learning your draw style, anchor, and especially draw length are likely to change. I'd spend more effort learning a consistent draw, anchor and release, then get to building the perfect arrow.
Good luck