forward flushes are fine reverse flushes are what kill the Jeep Trans.
Gabe figure $50 for both diffs
2 quarts for the tcase $10
the trans it will lose about one gallon for with a filter figure about $50ish
brakes get 2 bottles so $10
as for coolant not sure on how much water it will hold maybe 3 or 4 gallons figure about $100ish