The tool pics were great, thanks. I've lost my fear of adjustable (crescent) wrenches,...
....Yes, a good quality crescent is a must, big difference.....
....At least I've stopped cranking away with vise-grips (cringe) Craftsman makes a great pair...
Now you're scaring me...
Seriously the proper tool for the proper job is always the cheapest way.
Do not use your adjustable wrench if you have the proper box/open end or socket for the job.
A true headset cone wrench is pretty useful and cheap actually.
I have one of these for threaded headsets, i think they are about $15:

and use the adjustable for the lock nut. I also use the adjustable for the various bike tools that won't fit on a ratchet/breaker bar.
Park pin spanner is about $6...
Surely you can scrounge up a Jackson and a few quarters...