You should plan for schools that are affordable.
Whatever school he wants to attend - lay out his stats and we’ll find you an affordable one.
If you received $800K in a payout, you might consider investing in individual municipal bonds. You might get $36000 a year, retain your principal and have them to add with your earnings.
College is a huge expense - and if it doesn’t make sense financially for you, then you need to have that discussion with your student now.