Dick,
That is enormous.
I assume you'll use about $1500 in consumers les.
This leave around $31500 for labour.
Allow $1500 for the paper work log book entries.
This leave $30,000. At $150 charge out per rate, this equates to 200 man hours or around 22 man days.
So with a turn around of 4 days that equates to 5 guys working flat out to do the work. Absolute nonsense.
My suggestion is to pay a guy $500 a day to supervise and time the work done, I think the maintenance organisation will freak. But I'll bet the bill will be around $15,000