I snapped my lower limb on an Archer Research Model AR31 bow. 70 pounds but would go down if necessary. Appreciate any help my brother archers can give me.

There are a number of used AR bows out there selling at very good prices. Since AR seems to be dead (for now at least, based on forum searches), do you guys think it's a good/bad idea to pick up an AR bow? Will I have trouble finding whatever parts may be necessary to adjust draw length...