A spacer always helps on the SD & M1 single since there nearly identical. Epoxy was done by someone here. Perhaps it was @12many , I’m not sure.
Skipping the epoxy use, I’d just proceed in a normal way. The spreadbore top, IMO, will require extra clearancing because of how it is in the plenum area. Not so much the top. MPoffical just said the key words, “Line of sight.”