I still say do it, with the caveats originally mentioned. Moving is expensive. If these renos turn this into your forever house, you should come out well ahead. I hate to hear about the Roths, but here's a little life tale for you.
A long, long time ago, I was determined to buy real estate. I had cancer in my early twenties, so it represented an important kind of security to me. I saved for a down payment with fierce determination. Eventually, I amassed over a year's salary in the bank. Somewhere in there, IRAs, then Roths were introduced. I did neither, because house, house, house. I also left two jobs in my first decade of working just short of some kind of vesting, because, who knew? Employers literally never talked much about it back then. Hard to believe now, but true. ERISA changed a lot and for the better.
I finally bought my house and then started funding my retirement accounts. In the end, because I live in a high COLA, and bought smart, real estate has been very good to me and I am now FIRE. Thanks to blogs and forums such as this, which didn't exist then, I now know there are more efficient ways to get to FIRE, but get there I did, and you will too. In the mean time, you will live in a comfortable, affordable house that suits your needs. Go for it!