yes.
the displacement difference will not factor into total charge. nor will the hose length.

for the gauges question, I'd get a set from the local pawn shop. or go to harbor freight for a new cheapie set.


and it's a REALLY bad idea to evacuate a system and let it sit in a vacuum... pulls in moisture. the schrader valves are NOT designed for vacuum holding.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!