Wanted 70-76 duster project

I've sprayed some myself with OK success to my standards but dad went full on rotisserie every nut and bolt and the guy doing the work...well..lll keep my thoughts to myself lol. But body has been at the shop for 2 years and we were told 6 months and $8,000 as it was a rust free straight body all original panels. And already racked up 15k+ and also traded a 41 Plymouth gasser and all he has painted this far is the hood and inner fenders... but here nor there. That's my dad's fault for not taking it back 6 months after no progress and excuse after excuse. Do everything you can yourself or learn how to for sure!!! I'm doing a 71 duster. I build my own engines and rear ends. I'll do all my prep and paint...The only things I've never messed with is doing interior nicely so that's where I'm nervous when my time comes