NICE. Congrats and welcome to the MF party ! Two suggestions: I'd recommend a good cable release and a ball head on a sturdier tripod. I couldn't see the film mags you scored, but you can probably find some used 6x9 mags to work on that back AND a polaroid back that'll do Fuji color pak film.

A good portrait lens for that body is a 150mm. And for landscapes, etc., a 50mm Distagon. Keep checking around. Those used lenses abound these days. Oh, and I like B&H prices on film.
Have lotsa fun.