you can tell what mark 2 version it is by the serial. There is a page online that has the serial range for each model. By the way, dont let the lack of reverb deter you. You dont really miss the reverb on the Boogie. (just my opinion ...original reverbs on the Mark 2's were noisy and not like Fender reverbs at all) You can do much better for reverb with a Holy Grail Plus (or Nano) or a Line6 Verb Zilla or even the behringer equivalent for 50 bucks!
My mark 2a had its reverb stripped out.
The EQ is OK to have, but for many it just adds a whole other set of knobs to fiddle with which sometimes can be a dteriment. (many peoples complaints about boogies are that they are hard to dial in.
Again My mark 2a doesnt have the EQ sliders, and it still has more EQ options than 95% of amps because of the Pull bright, and pull shift knobs.
If the Iron is good and the amp is in good shape, you wont be sorry.
.......................................................have you heard the one about the yellow dog?