Strategy to use HELOC then repay from 401k after age 59-1/2 & student graduation.

Thanks all for the responses to this thread. I want to update you on the outcome. The very good news for our daughter is that her first choice private school came through with a grant that is phenomenal and a solid $10,000 per year less expensive than our in-state public schools. I don’t think we’ll need more than the available federal student loans at least until our son goes to school.