You can probably buy a Hasdelblad 500 EL for little money perhaps $250 or less, with an A12 or less expensive A24 back back, on which you need to do a new light seal change, right off the start.
Older C lenses, a 50mm and an 80mm, or 150mm with a lens doubler, a Ten stop ND, a polarizer, a user bellows lens shade, two Vivitar 283 flash units, with a extra long double connector cable, and a home made flash testing cable, two lightweight light stands, bought there, Pentax V spot meter and, a Luna Pro F.
A few colour contrast filters, gels will work, or, Bay 50 or threaded filters the corect size plus 5 - 10 mm and an adapter to Bay 50, all of whichwhich are down right cheap on eBay at the moment for used kit, like B&W glass. Also one really good UV as a protection filter on each lens, and a good tall loupe to more finely focused on top of your waist level view finder.
You'll also want a really good older metal tripod and monopod, both old style aluminum Gitzo, because you will want a steady fixture too mount you camera on, and a heavy vs. Carbon fiber, tripod and monopod is best to throw at snakes, monkeys, and beat off other beasties away from you composition.
IMO.