I've long since sold off my $14 Vent Noir II (complete with tubulars, it came from a thrift store where _any_ bike at the time was $14) so perhaps I'll try for a 'recycle bin' challenge. My local co-op throws out lots of usable parts even though it often takes multiple dives into the dumpster to get all the parts needed for say a headset. Still, I've hoarded quite a stash over the years and can probably get most everything together for 0$. I normally don't re-use their old cables and tires but in this case I'm sure I could make an exception. Tubes could be tricky but patches are cheap, so maybe $5 is a better goal.