We knock up a cheapo rebuilds for cam testing.
First thing to do is find a block where there is no lip between the top ring and the face of the block, my theory here if it has a lip then needs a rebore, Yeh I know you can ridge remove but I seem to get leaky bores when I do this.
Number rods and caps when removing from block. re-install in same order
Measure bores and crank.
Run a dunny brush hone down each bore, never use 3 prong hones as they change the bore shape, hone cost is about 80 bucks.
Wash block really good heaps of soapy water and then dry really good with air compressor, then oil bores really good and keep all dirt out.
Buy on ebay pistions ($60) rings ($60) bearings ($80) gaskit kit ($80) timing chain kit($80) prices are just guesses of what they normally sell for.
If the block is not chemically cleaned I will reuse cam bearings.
Cam regrind will cost about $120 and lifter reface about $40.
Flywheel lightened about $80.
When assambling be sure to time the cam in makes big difference.
Make sure head bolts and threads, main brearings and threads, and big end bearings and threads are clean and oiled prior to torquing down.
Get yourself a 3k yellow book from ebay.
Hope this helps, if you are melb based PM me I'm rebuilding a 3k in the next few weeks you can come around and see how its done.