Thanks all, very much appreciate your kind comments.
Well, next up is a sort of refrubishment of my lathe. I want to beef up the cabinets it is sitting on, replace the spindle and other bearings with higher quality American made bearings, re route the coolant hose and add a DRO. DRO arrives today! So that will be a fairly major project - I have two pieces of 1" thick steel plate to put on top of the cabinets and give it a firmer surface to sit on - hopefully take the "bounce" out.
In parallel with that, I'm planning to start this:
A PM Research number 4 - a bit of a bigger beastie. 1-1/2" bore, 2-12/" stroke. It's not a very "fancy" looking engine in a lot of ways, but is a decent size so should look impressive. I've read a few build logs that give me some good insight in how to proceed.
