winshield removal/installation charges NEED INFO!

[Dropt72Shortbed]

ive called around trying to find one of those mobile glass services to remove the windshield and rear window from my old cab and to install them in my new cab.

no shops will warrantee the front windshield from cracking as its obviously old and used (i understand their stand on that)

i found a place that will remove and install my rear window and front windshield for $80. however if the windshield cracks then ill have to buy a new one for $133. bringing the total from $80 for labor up to $213. he said they wont have any trouble with the back window cracking

so heres my question
1. is this a fair price?
2. what are the chances of the glass cracking? my glass appears to be pretty damn new, not original.
3. do i have to buy new molding or can the old molding be reused? its current state is good, not dry no cracks, looks fairly new.

i figure im going to tell the guy ill slip him an extra $30 if he can get the old windshield in without cracking it so hell have a reason to try his best lol.