PITA
Lucky I had the use of Conors ramp but took the guts of a day to do the underside and I didn't even go to town on it!! Messy as hell. But don't let that put you off
No seriously, you could do a decent job of the rear areches in your front garden, and been honest these are the lost important!!
Jack
2 axle stands
screw driver and size 8&10
some degreaser
brushes
rags
and the underseal is all you need!
Well worth just doing the 2 rears Peter