Hello...I have a 1989 looper 200 25" that i want to convert to 20" what year & hp mid sections will work, also i have a 200 crossflow lower unit will the 20" drive shaft & shift shaft work with looper lower unit, I know the gear ratio is probable different but was hoping the shafts would work, local mech said raising the transom 5" would be easier ? I'd rather wrench then glass myself, Thanks for any info or advice