@seeyouyesterday I am not an expert on tree ferns but the advice I always see given is to buy the size you ultimately want (or nearest you can afford) as they take so long to grow.
Having said that, even the most modest of trunks looks fab and the juvenile ferns with no trunk still have very impressive fronds.
I bought a 1.5ft and a 2ft log last year, they arrived mid April. It was tense waiting for the fronds to emerge but they did and have stayed green over winter. I'm now looking forward to the next flush but no sign of that yet.
I also have a juvenile Dickinsonia Antarctica which looks great, no discernible trunk but distinct crowns (it's a double) and big fronds, I've had that a couple of years.
I would say get a log, even if its just small, in a pot it would look bigger. I haven't used GE and have heard lots of negatives, though some are lucky. I suspect I bought mine from the same place as a pp as they have now gone bust.
My juvenile was from hillside exotic gardening and it was great value and big, they also sell trunks, great company I would recommend. The palm tree company seem reasonable prices and will ship with fronds if they have them at time of purchase. I also second Big Plant Nursery as a fab seller, not had any tree ferns from them but lots of other stuff, all excellent.
My local B&M garden centre has small juveniles for £6.50 at the moment, might be worth grabbing one if you have a store nearby. I might have accidentally bought a couple myself!
I am expert at sneaking plants past my DH, we have similar views on quantity of plants. I find that if I can get them to the garden without him seeing, its a good few weeks before he notices and I can normally get away with saying that I've had it for ages. Might be more tricky with a tree fern, though.