RE: Spinner will not fit APC prop?
Well, yes and no.
It will work fine, but the spinner will no longer blend in with the cowl.
So if you don't mind it looking funny, it will work.
On the other hand, if this is your first low-wing plane, go with a MAS, you'll never notice the difference in performance, because the way you'll be flying it, you won't NEED any extra performance