Do you actually have any mechanical aptitude?

150 miles on any bike isn't much for needing hub and BB overhaul. For a 1995 job, has it been hanging in a garage for 10 years? Why do the hubs need repacking, or do they just need adjustment? Do you know how to do that? Do you know how to get the rear freewheel/freehub off (I don't see a tool listed)? Do your hubs have quick releases or nuts on the axles -- it makes a difference to hub bearing adjustment? Do you know how to check for bearing adjustment on a BB? Do you know which side of the BB shell threads is lefty or righty? Is you current BB a spindle, cup, cone and balls arrangements that only needs relubricating without going to a cartridge? Do you... get the picture?

Maybe you should shop around the LBSs a bit more and actually drop some some dollars with someone who knows what they are doing.

Then buy as many tools as you want, go find a beater bike, from a tip or recycling shop, and practice on that, concentrating on one area at a time (maybe BB first, then rear hub, then front hub, etc). Read up on everything as you go.

At least you'll have a reliable commuter, and your stress levels won't skyrocket when you suddenly realise your commuter transport won't work when you need it most.