If you are from armour yourself, you will definitely know these
answers already.
from armour =/= armour trained =/= from armour.
Anyway, to keep things easy,
if the thing is in front, it comes out from the front. If it's from
the back it comes out from there. If it from the top it's taken out
from the top.
How do you take them out? The same way you handle Large civilian
vehicles - Crane/winch for heavy lifting. The rest is all human
muscle.
Drive onto a (i forgot the name) it's just two concrete slabs with
space in between(like you standing on an open drain).
2 men can stand shoulder to shoulder and stand without hunching too
much.
For day to day maintainence, floorboard with wheels(if you are
lucky) else back crawl underneath and do the things with your
hands/tools
