I think at this point in the process the answer needs to be more clear in order to continue weighing this option on your list. “Probably” and “belt tightening” are not words that would make me comfortable enough to turn down significant financial offers elsewhere. So first thing I would suggest is talking with your parents to shore that up to a firm “yes” or “no.”
Once the financial discussion is settled and if ND continues to be a viable option to pursue, then I would say compare the programs of study and the course offerings next and come up with a gut feel of your own on the value of the education. Also consider the amount of help offered to you by way of securing research opportunities/internships/co-ops/jobs, etc which plays into the value of an education too.