Agree with post 2, you're likely overthinking this. The bike will get filthy but will survive better than you think and you will be able to clean it in the spring. I finally got around to taking apart the winter beater bike I built up 4 years ago. I reconditioned the chain every spring and replaced it once but other than that I've done remarkably little to the bike to keep it going. T
his year I've already stripped it down and I'll rebuild it from top to bottom but, as I said, it's in pretty good shape. The front derailleur died but the rear is still going strong. The cassettes are in fine working order but have some grime that will be difficult to clean up.