I dont do commercial work anymore. My shooting these days is strictly for my own pleasure and also for testing Rapidwinders, lenses,cameras etc. Having shot for a living for decades, you start developing a rather haphazard view on film. It is a bit like putting gas in the car. Without it is just a lump of metal (be it a car or a M2). When you think about it, 4000 ft is not that much. Each roll of 36-37 exposures is 5.5 feet long, so 4000 ft is only a bit more than 600 rolls!
I do process my own stuff. It would be absurdly expensive to have it done outside - particularly if it is for your benefit. Part of the reason is that I am forever looking for that "holy grail" of the perfect developer. There are times when I feel like an actor in Hamlet's "McBeth". "Eye of newt, sweat of mare and stir well". I make my own developers from scratch. Sometimes they are concoctions from Steve Anchells "The Darkroom Cook Book" series and sometimes they are my own ideas. So far that Holy Grail has eluded me, but I persist - mainly because it is fun!