Very satisfying experience to do what you did. And one of my favorite (real and model) locos - possibly the most striking steamer ever built - and this is from a NYC guy. Great job.
I've gotten 3 nice locos cheap because they needed work (each for around $200, strangely):
$200 for a NIB damaged (dropped from a truck, but in the box) Legacy 2-6-6-2 - ran fine; fixed the broken details.
$200 for a mint damaged ROW brass 2-8-8-0; broken valve gear and boiler mount.
$200 or so (I forget) for an unpainted (the superstructure) and unassembled MTH Premier Dreyfuss Hudson, in the box, with no PS2 boards but all details, wiring, motor and P'coupler - but very few screws! Had enough screws between me and Ace Hardware; put in an ERR Cruise Commander (no sound) and now I have sort of an MTH Engineering/Pilot Dreyfuss with TMCC. I sealed the unpainted boiler/tender castings with Glosscote after I finished it, which actually yielded a satin finish.