It all depends on what you want in the end.

Most people who buidl a Willys have dreams of a high end car because they see them sell for ell over $50,000+. If that is your goal you will probably have to invest that muchbefore your done. Take it from me. When I started mine I did what I thought was extensive research, but I learned I really knew nothing at all. I bought a Heritage body for $8,000 and built my own chassis. I thought the body would take maybe anther $10 to get it in paint . WRONG!!! I will have upwards of $27,000 just to get the body straight and painted, that does not include over 120 hours of my own work on the body.
Since I bought mine I have investigated other companies and I find that even the "best", read that as expensive, still need $10,000 + to get them in paint.

Now remember when I asked what you want to end up with. I have seen only a handul of Willys that were inexpensively built and they looked like it.

Expect to invest an absolute minimum of $25,000 If you do most of the work yourself.

Look carefully at all of the ancillary stuff you will have to buy, the grill and headlights alone will be $800-1000. Willys stuff is stupidly expensive.

I am an old time hotrodder and drag racer and if I would have had not had my head up my arse I would not have invested the $50k I already have. I have found out that this kind of car is just not really me. So THINK before you plunk down any where from $8 to $20 for a Willys body.

John