I'm not 100% sure but I seem to remember something like this sitting in a corner of the lab I worked at once.
I don't remember the 309t bit but I do remember a Colenta 70. Bit of a beast, we replaced it with a 310mm wide roller transport Colenta film processor. Or maybe I'm getting it wrong and it was 309mm wide and therefore could be the same thing.
Is it a roller transport or a dip and dunk kind of thing? I remember the 70 as sort of like dip and dunk, but it used blades and other funny stuff for agitation (I think).
Almost any old Colenta will be a commercial size thingy, which means it is designed to do heaps of films or paper and requires heaps of chemicals, not really for an amateur, although there are some who go through film and paper like you wouldn't believe.
I would suggest that it may really be designed for a bit of a bigger throughput than what you envisage. Presumably it is a local thing as I wouldn't think any Colenta piece of darkroom equipment is going to go through parcel post, can you drive over and check it out?
Mick.