Their is really a lot to chew on as far as longbows go for you.So many styles and designs to choose from.You got bows with straight limbs,backset limbs,string follow,Mild to moderate to more radical reflex/deflex designs.Then you got grip syles as well from straight, low,/low/medium,medium,medium/high and high.Handle styles as well from forward style,straight,reverse style.
I suppose it sounds complicated and is.Especially for someone just starting to look for one of their 1st longbows.Seems like old hat to oldtimers who study bows and have been through a pile of bows in their own experience.
I definatly don't think you need a 72 inch bow.As state3d above you will really limit yourself to very minimal choices.Thier will be a lot of choices 70 inches and below.you could find a lot of choices that will be below 70 that will fit you perfectly.
I think one thing that I would do is learn about the different bow styles of longbows and start narrowing it down to a few that appeal to you and your intended use.One thing to do is look at every bowyer in the Sponser Links of Trad Gang and check out thier lineups,styles and price points.You can then ruminate about things and come to some understandings and start narrowing it down to what you find most appealing.Call a few bowyers and ask questions about thier creations and let then steer you around a bit for something that suits your draw length and intended purpose.
Some bows may be very aesthetically appealing to you.Bows that you are drawn to for thier lines and or style.You might look for bows that have great reputations.you can always use the search function on Trad Gang and see if thier are threads pertaining to particular bows from particular Bowyers.Thier can be alot of info for you using the search function.
Last but not least you can try and go to shoots or trad gatherings like the Kalamazoo Expo in MI.,the Compton Shoot in MI. and or Denton Hill etc. in PA. where thier are many bowyers with test bows and bows for sale for you to shoot to get the best idea of what you really love and shoot well.You would probably walk away with a bow that fits you well and like the looks of or order one to have custom made.You could find many bows in the 400$ to 750$ range no problem.They often have used bows for sale at these events as well that could save you some $.