Actually, the slant in my profile is just my weekend deal to camp in. I haul the high dollar horses in this stock trailer :-laf
I have thin teflon strips on all of the cut gate, slider gate and escape door metal/metal contact points. I also put dabs of silicone in the plexiglass track to keep them from rattling. So, when my ball starts squeeking and creaking, it's noticeable and irritating.
It may sound anal, but these woman pay big bucks to have their horses hauled in a box stall, and a stock trailer doesn't have to sound like one coming down the road.
In fact, I'll make 2, maybe 3 more trips this year, and should end up close to $150,000 gross -$25,000 for fuel -$25,000 for equipment maintenance and depreciation -$15,000 for taxes, insurance, broker site subscriptions, office supplies and equipment = ~$85,000 cash for what doesn't really even seem like a job.
No kidding! How did you get started doing this? Hiring?!?!