If I was you, and I’m not, and had $500 in my larder itching to get a shay, I would get one of the TMCC ones spoken about. Seems to be a good fit. Legacy can be a tad overkill anyway. Just my 2c. Now there’s an outdated saying. 2c doesn’t buy a lot of model railroad stuff, but $500 could.
Cheers, W1