it seems quite daunting, but it's quite simple when you break it down. I did my first a couple of days ago. 80's 6/7 speed wheels are cheap as, probably get one for cheaper than £20 if you try
got LBS to unscrew old freehweel for no charge,
bought the following - £5 cog (
ebay), £1 lockring (LBS), £5 on Araldite SuperGlue+ (strongest waterproof glue available in my town)
re-dished it at home with a £10 spoke tool. Used old spacers from knackered old MTB wheel etc to get a good chainline and spacing on rear dropouts. This can be a pain but its simple logic, just takes time
You might have to put the chainring on the inside of the crank, I did, <1mm clearance off right chain stay, lol
Rotafix after gluing it
cheaper than new wheels, really nice rim compared to a modern, learned a LOT about converting. The next one's going to be a doddle
it's currently Q/R which Sheldon says is okay, but my solid axle arrives tomorrow and I can do it all again