I think I can help you. Just picked one up last weekend, Aero, black, it's soaking now. I've yet to open it up and check the internals. Will try to send a photo later today.
It's in fine shape internally. Though it seems to have a Vac "51" feed with a Vac length (short), "Teflon" breather tube. No vent hole in the tube. I don't have a correct feed available. I'm putting in an appropriate length Teflon tube with a vent hole. Pictures still to come.
--greg