I take it you already own a large, quality tripod?
Film like Tri-x will run you a bit over $1 per sheet. Color film two to three times that. Sending out color film for development can easily run over $4 per sheet depending upon where you send it.
Spotmeters? All over the place, but on eBay you can find decent ones for a couple of hundred dollars, a bit less if they are the older analog type. I have a Tenba branded spotmeter which is essentially identical to one of the older Pentax models... but these still go for over $100.
Fortunately focusing loupes can be had for around $40.
$800 doesn't go as far as it used to...