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.
My bore head will only run around $350 included shipping.