I've been curious about folders for some time and regularly keep an eye on Craigslist in my area for something that might be suitable to me and a deal since I don't have a lot of $ to spend.

Can anyone answer the following about the Worksman 3 speed?

* How hard would it be to upgrade it to more gears? Could I go internal hub like a Nexus on the smaller diameter wheel and just replace the shifter?

* How difficult would it be to add front brakes, and if I went with a different wheel: rear brakes? I can probably wrangle access to a welder for a few beers but am a little concerned about placing the bosses for cantis in just the right spot. Are there other options?

Should I just continue to look for a deal on a different folder? I realize the Worksman is heavy, but I'm a Clyde who is also overweight right now (270 lbs). Even at my fighting weight I'm 210, tough on bikes and Seattle's streets are rough. I'd welcome any recommendations for other folders that might be suitable for a 6'2" guy who likes to ride in an upright posture and carry a load.

I'm intrigued by the idea of rolling smaller wheels in the constant stop and go of my commute through all the lights, stop signs and traffic. I also regularly visit a friend near the airport and would like the option of going multi-modal and taking the light rail without having to stand the entire 40 minute ride holding my heavy converted MTB commuter the whole time.

Many thanks good people!