you can buy larger quantities than the 5 liter kit, which is what I did, from unique. it has a much higher up front cost, but using a replenished scheme, works out really well. my replenished working solutions are now over 2 years old and work good as new. I have had to go thru 2 of the color developer and 1st developer boxes, each of which makes 10 liters ( I dod shoot a lot of film over that time) but im still on the 1st purchases of the other solutions, each of which makes 20 liters. I think it was $750 for the first set of chems and then $100 for the next set of 1st and color developer. the downside is the starters. you need 3 and they come in gallon sizes, but you only use like 10ml of each occasionally, so it requires you to buy a lot but it should last my and my sons lifetime!
yes it was is expensive, but still much cheaper that using a lab and MUCH faster. its a trade off. for years I used the tetenal 5 liter blix kits when they were less than $100. but when they switched to 2.5 liter kits at the same cost now as the fuji 7 bath, I moved over. I prefer the results from the fuji chems. they are subtle, but I can tell a slight difference, especially when they are projected. when scanning, there seems to be better color differentiation and no artifacts (?) in the skies and shadows that i did occasionally get with the tetanal kits. also, the individual stock chems last MUCH longer with the fuji than the tetenal did. I use empty wine bladders to store my working solutions and my mixed up solutions for replenishment and top off the stock bottles with propane to keep them fresh.
this might not be a solution for others. I do like to shoot slide film and have almost 700 sheets of velvia 50 in 4x5 and over 600 rolls of 120/220 rolls of slide film in my film freezer. I have been stocking up over the years to make sure I have enough for my film passion. if you have and plan to shoot a lot of slide film, it makes sense in my mind to use the fuji chems. I was told that fuji hunt, who makes the chems, reports back to corporate in japan about the chem sales volume. Not sure its true, but hoping good chem sales keep them making more film. hoping kodak or champion starts selling 5 liter home kits again as that could put pricing pressure on whats available now, unless they come out at a higher price like they did with e100 film.
sorry for the long winded answer, but I prefer the 6 bath kits over the BLIX kits after having used both.
john