you dont have a pic of the full bike. No idea what model it is.
Nice crankset and rear derailleur.
Strong work ripping off a homeless man.
There are s of great places to get wheels both local and off he internet. Its pointless to commend anything as you dont mention what you want in a wheelset...what type or cost range.
I assume thats for 700c since its caliper brakes...
Worth-
as is before knowing where you got it?...$150.
Parted out? $250.
After finding out you bought it off a homeless guy for $20?... $15.