Tunnel ram or no tunnel ram...

Not a machinist. I taught myself how to do things on equipment that's available to me sporadically. It just takes me a long time to do something a machinist can do in a fraction of time. Originally I took one piston and clamped it in the lathe with a sleeve around the skirt (verified run-out) and then I cut the dome off to help conceptualize some aspects of a theoretical build. There I learned they could be repurposed to what they are now and had Rebco do the rest because I couldn't beat their price, timing and quality. After, Line2line did coat the skirts.
That's cool, we have some old tools at work that probably haven't been used in decades. Piston shaper is one and knurling tool.
My boss needs to upgrade everything, the tools and machines all work but they all have their quirks which I had to figure out. My boss didn't remember how to do any of the work except the head surfacer so he gave me a overview and I said I can figure it out.
I had line 2 line do my pistons for .001clearance during the rebuild process, Im glad I was told about it because that makes some other builds I want to do more budget friendly.