Sorry to hear about your dad and your injuries, but I would strongly advise you to not go. Statements of the form "X is not an option" are extremely dangerous for concussed people. I had 5 concussions in 8 months because quitting soccer was "not an option".

I used to live by the motto "what doesn't kill you makes you stronger" but that does not apply at all to concussions. I climbed Kilimanjaro when I was 18 (I'm now 23) and to be honest it was pretty easy. But back then I was a normal person. Running and jumping used to be easy. Hugging people used to be fun, not scary (I'm scared that the person will shake my head too much).

I'm sorry to be so negative and I'm sure you'll resent me for saying this, but the only doctor I respect is the one I initially hated the most (for telling me I couldn't play contact sports EVER AGAIN). But now I only hate those doctors who cleared me to play just weeks after my previous concussions. Don't be me. Don't **** up your life. You don't want this life and your dad wouldn't want it for you either. Wait a year or two and then go. Sorry, but your $10K is nothing compared to the treatment costs, loss of lifetime earning, etc that stem from TBI/PCS.

Just be grateful for what health you still have and don't push your luck.
Sorry for being a downer but I wish everyday that someone had yelled at me after concussion #2 rather than coming to the realization myself after concussion #5.