Hi Catamount, just finished reading your build thread. Great write-up, thank you for posting!
I just picked up a 2013 tw200, "mostly" for my kids to learn on. ? They've been blasting around on a Honda z50r, then a Yamaha ttr90 and Honda xl100s.
My son is turning 12 this month, and my daughter is 15 already! Man how time flies; she'll be riding and exploring with me next summer!
My advice: keep the bike! The years fly by and you will be kicking yourself if you let it go!
Also, suggestion for next mod? Foot pegs in front of the engine. My 4 year old rides (only on trails, of course) in front of me on my dr650 and holds onto the middle of the handle bars. Right now he puts his feet on top of mine, but that'll be my next mod: a good place for him to put his feet!