I'm on the other side of the spectrum.. I just wanted to do it myself.. Had most of the tools/equipment so why not. Then the state changed the rules on registrations so I rushed to get it done and submitted so I ended up with a rush job and it shows. But, I'll just have to re-do the areas and live with it.

In some respects I'm glad it is far from perfect, when I had my Mustang I fretted over any dirt / dust and hated to drive it. Now - I don't care as I have to re-do it anyway and just really enjoy it more right now!!

I don't have but +/- 1,000 in paint & clear / fillers.
Sandpapers and some sanding tools maybe another 500..
Maybe another 500 for some other tools..

But the experience??? PRICELESS!!!

I also wanted to do the interior, so I bought a book & read it. Then I met a guy, experienced and willing to offer some advice, and help, whenever I got in over my head, he helped bail me out on things like the headliner..

Did it in cloth from LaBarron Bonney and I feel it's nice, presentable for sure as when others see it they have favorable comments. I still have to recover the seats but that'll be over the winter.

So, if you've got the ambition, and a place to do it...try doing it yourself! It's a laborious task but not outside a basic skill set if you don't need a bunch of bodywork.