I just built a Smith Miniplane, and I am covering it, per box cover.
Power is OS 40SF ( I hade one NIB).
My only modification was to replace the wood pushrods for the tail with sleeved 4-40 rods, a la TF style.with a crossover in the middle to keep them straight ( small plane)
I love that little plane, it has "character"
I paid a lot of attention to the wing incidence on the cabane. Otherwise, an easy kit to build - lot of stick work - and have a good soldering iron.
Looking forward to see it in the air.

Ray