I plan to do the same, if I manage to place an order. What prop do you plan to use for the Saito 100? I did some thrust measurement on this 100:

APC 15x6 @ 9900 30% fuel gives 12.5 lb. of static thrust
I'd imagine with APC 15x4W it would turn 10500, at least 13.5 lb. of static thrust.

What kind of rpm did Chris get w/ the YS 110 on the prototype using APC 17x6? I estimate APC 17x6 @ 9200 gives 14 lb of static thrust, just from flying a 12 lb. plane that displays limited vertical.