OP said that Gtown would be about $30k from the NPC. But I can’t imagine the parents want to pay that especially if they said they are not paying.
I’m confident that the brothers can each find a program that fits their needs as far as major and opportunities, while being affordable with full tuition or more.
Need based schools won’t be a good choice because they would expect $25k or more based on EFC and that times four…