
Welcome to the forum and sorry to hear about your shoulder. I've been down the same road as you.
Concerning what crossbow...I must say you are quick to jump straigth into the fire!

The best advice I can give you is to take your time, go to a few places and shoot a few, and buy what you want when you find it.
I chose Excalibur for the following reasons:
I can change a string in the field without having to use some fancy bowpress.
Lifetime Warranty
Very simple to use with very good trigger pull (3.5 lbs)
Lightweight, and easy to hold.
Accu-Draw Bow ****ing System works well with them.
Hope some of this helps,
Joel