The only other thing you will need to consider is that the vertical pull starter has 2 tabs that bolt to the block. The front one is easy enough and picks up with the fuel tank. The 2nd one may not have the hole drilled and tapped on the back of the block where it picks up. Again, it can be drilled and tapped but be careful not to go too far and drill through into the crankcase.
Cheers, Ted