Gibblet,if it would be possible.I have a Versa cam from a Hoyt Protec that was a 39 1/2" a-a bow with a draw length adjustment for that bow from 26"-28" that might be able to be put on the bow and get the draw length desired. If you hink it might work I would be willing to send it to you to try.The cam also has adjustabledraw stop holes,so it has quite alot of adjustment.
I got to thinking about the poundage issue and because you are trying to get the draw shorter,the poundage would go up with shorter cables but should come back down because of the shorter draw,basically offsetting each other.BUT you would still put alot of preload on the limbs but shouldn't be that big of an issue with a 26-27" bow.
Let me know if you want the cam and idler, If not,let us know how itturns out anyway.