Turn a small drill press into a Bore/ Hone. Bolt it to the top of your engine block & do your own machining .

For fucks sakes, send me $2500 and I'll ship you my old van norman 777s boring bar setup. Its complete with all the cutting bits, the tools, the various sets of catspaws, and the tray micrometer. It's in a nice roll around cabinet also.
is this offer open to any of us?? if so might be needing your contact info!