Anybody ever "DIY" your own slant to SB engine mounts?

If I get serious about the "new" 74 Scamp, I will likely stick a SB in there instead of the slant. Since it's February, and there's over a foot of snow on the ground, this is all dreaming.

So it of course has a slant K, and spool mounts. Anybody ever DIY their own so that you don't have to change or chop up the factory K?