Im wondering a few things :
Chamber Vacuum Sealer - Chamber Vac Pro I
$759.00
VACUUM CHAMBER WITH PUMP FOR SMALL RESTAURANTS
Chamber Vacuum Sealer - Chamber Vac Pro II
$799.00
VACUUM CHAMBER WITH OIL PUMP FOR SMALL RESTAURANTS
these are the two more expensive chamber vacs , in a conventional configuration
note that the 800 $$ one has an oil pump
I can't find out if the vertical has an oil pump
In not spend thius kind of mont for anything less than an oil pump.
you will have to fix the non-oil pump evenbtually
which I had to do w the Weston
that looks a lot like :
way back when
dry pump
keep that in mind.
reading a bit more carefully
the vertical is a dry , not and oil pump.
but an interesting idea
save , and go for Oil.