I don't know, I'm no structural engineer, but I think it would make a lot more sense to knock out a wall at the hangar/barn that is Freitas and expand the seating there around the existing rink to meet minimum hockey east requirements for now, rather than trying to outfit Gampel pavilion with an ice rink.
Gampel is not going to get turned into an ice rink. There are multiple caverns under the pavilion housing classrooms, laboratories, and strenght/training, equipment, coaching offices etc. Not only that, the pool - extends under the bleacher section on the memorial stadium side. (the pool, that's another fun subject - beautiful 50 meter pool, but they only made it 6 lanes instead of 8, and having a facility that can go 50m long and 25 yards wide.... so it's essentially extremely limited in what they can offer in there, because for some reason it had to fit into the Gampel designs.......never mind.
I don't think it would take too much time and cost at all. It would make sense to me, if like in basketball, especially early on, if some hockey games were held on Campus, and some games, bigger draws each season, were played on the ice in hartford.
It's possible that Jeff Jacobs has never been inside the Freitas building though.
As for Gampel, it's 23 years old now, and I'm again, no structural engineer, but looking around, the place is maxed out as is. It's either go to the drawing boards to revamp the existing structure, mainly the dome itself, or go the drawing boards from scratch.