Why not get another Mac 22 ,they are cheep and strap them together with a platform, then you would have your Cat with side by side sails and two rudders, then the motor would be in the middle. Me I would spend my time and money on the C&C and then go real sailing.
"FULL TILT II" 2011 BENETEAU FIRST 30
"FULL TILT" SOVEREL 33
"GOLD RUSH" PRINDLE 16