I've decided to give C-41 processing a go. I ordered a Tetenal kit that makes 1 liter of developer, blix, and stabilizer, which is exactly the amount my tank takes. I've tried to search as to whether I can reuse these chemicals for more than 1 batch, but can't come up with anything definitive. If I could get 2 batches out of each kit, I'd feel good. It just seems a little bit pricey for 1 shot, but I'll continue anyway.