There are a lot of naysayers out there but you can achieve surprisingly good quality with home equipment. The problem is handling the long lengths without an industrial setup. A 100' of 16 or 35mm is about all you can realistic manage in a typical home darkroom. Also while you can get decent results for B&W film or colour E-6. Its difficult to get good colour negative results because rem jet removal is a difficult step to manage with an amateur setup.
If you are lucky and patient you might be able to locate a Cramer film processor. These were made for small labs, hospitals and news rooms to process 400' lengths of Super 8 or 16mm. It'd take some effort and money to get 35mm rollers and modify the machine for that guage. I know a fellow who is in the midst of restoring one, its very compact, maybe 6' long 4' high. Practically a tabletop machine. The manual for it has a brochure that says the company also made 35mm machines but I imagine those would be even rarer.
There is a guy in the UK who modified a Jobo processor to handle 50' of super 8, but I don't see that being realistic for 35mm.
More likely, you might also be able to modify a microfilm processor or a 1 hour photo lab processor to handle long lengths of film.
Here is a film done on a microfilm processor:
And an article on the machine used: http://cinedarkroom....-kodak-prostar/