I just picked up a box of engines in various stages of conversion. I need some help/tips on finishing them up.

#1 Sachs 51cc, 3.1 ci. It is about ready to go, but it needs some seals around the crank and a carb. I will attach pictures below. I assume I can take it to my local small engine shop and find them?

#2 Husky 5.8 I actually have 2 jugs for this one. I have 2 new pistons and rings and also another new ring in a package. One jug has a compression release, the other does not. That seems to be the only difference on the two cylinders. I need to make a mount, cut the rear shaft off, and find a carb and spacer for it. I guess I will use the cylinder without the release.

#3 Johnsored 3.7 This engine is complete less the rear bearing and seal and the wrist pin. The back shaft has already been trimmed off.

Now does anyone know anything about any of these engines?