It might be wise to sit in a ground blind either with your loaner or wall hanger and just see how much clearance you have. I can't fit any of my bows except my 52" kodiak magnum in a ground blind, so def check out your clearance before you drop the $$$.
A shorter bow is going to be a lot easier to maneuver in blinds, stands, through brush, etc., but i find a longer bow more comfortable and forgiving to shoot.
The classifieds are a great place to start. If you're just looking for your first bow and want to do it right, start with a used one. Custom bows are a whole different animal, and getting a used one will keep your costs down and the risk low if you don't like it.
Good luck sticking to just one at a time.
Alex