I bought one maybe 4 years back; the pedals are garbage, the saddle ain't my bag but some folks love'm. You get a 7/8" post that's plated with something (zing? pigeon droppings? mung? definitely NOT chrome) but it's strong; it works. Wald stem, Wald bars, some throwaway grips. The headset is a Wald but with Worksman-specific cups; the Wald headsets these past few years all have a YST top-nut. BB is probably Wald; you get a generic Taiwan OPC; I believe it's a 170mm. The 44t sprocket and chain are 1/2x3/16" chain, which is really fat. You can't run 1/2x1/8 on the front sprocket; the rear is a standard 22t Shimano, and will work with 1/2x1/8" chain. So, if you wanna switch, you don't have to worry about the rear at all. The wheels: front hub is their own knock-out extra HD hub; makes sense for the LGB fork, but not so much for the INB and M2600, although it works in any of those contexts. Rear hub is Shimano cb-e110 standard, but you can get a Nexus 3 speed, a Sturmey 2spd, or a SS drum as upgrades. 11g spokes with moped nerps; your spoke wrenches won't work. I haven't played with the aluminum rims, but the steelies are massive, look cool, won't hold a tire with any real PSI in the tubes. Stock tires on the one I got were the CST C241 type tread, but a nicer Kevlar-belt going on. Not sure if these are "upgrade" tires. The Fenders and chainguard on mine were steel; the fenders are a little shorter than full coverage, but not quite "bobbed" lol. New guards and fenders are apparently plastic nowadays.
Basically, I sold/gave away the bars, grips, pedals, and saddle. Bars are nice, but not my favorite. Fenders went on a different bike; forget where they are now. Chain and front sprocket are in the parts bin; the bb was replaced after quite a bit of use; crank is in use on a different bike. Most all of it is good stuff, except the pedals and, imo, the saddle. It just may not be the stuff you'd run, given the choice. The only legit gripe I have with buying a new Worksman is that the paint is a bad joke; it doesn't last at all, and may even have some little bubbles forming when you take it out of the box....
My advice would be to get a $70 Chuckz frame, and give it a proper prep job before powder. If you take it down to raw, sandblast it, and then sand down any craters, good power wll cover most of the imperfections. You can get HD wheels aftermarket, even the WTC-branded ones, if you wanna pay for'm. Chuckz somethimes has those, too. Basically, all you probably want is the frame, probably the fork, and I guess the wheels. You'll save money for the stuff you like if you get it used from Chuckz or via other avenues.... but there is something nice about buying a new "complete"; I haven't done it in 4 years. (Thinking of buying a bike from my LBS, just to try to support'm some more....)
HTH
-Rob