dy - I believe your draw length at 28 - 29" would be a bit short for you. More like 30". But a pro shop would be able to help you out with that to be sure. (I'm 5'8" and shoot 28" and I am not over extended).
As for draw weight you can get a compound with at draw range of 45 - 60 lb so you can start at the lower DW and work your way up as your muscles develop. Changing DW is as easy as turning an allen screw on each limb equal amounts.
I sent you a pm for you to reply.