Well,

On the kit you're getting, the forward spar goes almost entirely to the leading edge cap. I wouldn't weight the thing down with a bunch of reinforcements to make it suitable for your powerplant. The rear spar is too far aft to carry the whole load like in the F-15s that are out these days.

Why weaken the wing? I know it looks cool, but I think the net effect isn't going to be worth the peace of mind you lose. Again, just my $.02.