With regard to buying piecemeal - or doing anything in that fashion, actually - I already have a tank

Just my luck, it seems to be pretty much the very first one off the Paterson assembly line. I bought it off a guy who sells vintage cameras out in Tyabb (um, directly south-south-east of you - about 50mins away at a guess). He's a fount of information and I've been milking him for advice for the past couple of months. I desperately wanted to buy SOMETHING off him in return for all of the time he's taken in talking to me. At any rate, given what he knew of my needs and budget, he handed over a 1950 Paterson 35mm. It only takes the one roll, which is perfect because then I can only screw up one lot at a time

Unfortunately, I meant what I said about it being first off the assembly line. It works perfectly (if my sacrificial roll is telling things right on the practice runs I've put it through) but some of the rules after that point don't seem to apply. Primarily, this is NOT a tank you invert. Also, the manual goes to great lengths to harp on about not needing to take the film out of its canister. So, given what a rarity this particular model seems to be, I've no one to ask questions about where the instructions I have deviate from EVERYTHING I've read on the net and in books.
Hmm, sorry, bit of a tangent there. The total cost of my chemicals came to $36 at Vanbar. I can't recall precisely what I put in the shopping basket, but I believe the dev and fix were both Ilford and the stop was Kodak. At any rate, I've been looking around at all of the tricks of the trade to prolong shelf life, so I should be okay there and, given that I thought all of that stuff was going to cost me a fortune at the outset, I'm not going to feel
too if I don't use it all in time. My major concern really has been the expense of the film. Particularly, as I mentioned, for those first few rolls which I won't dare take anything "important" on them. (Probably be a ton of snapshots of my toes under different lighting conditions just to see how they turn out without being worried about how I trash the negatives!)
What format do you shoot?