need help

hello new to your site im from sw pa im a 55 yr old car buff just bought a 1966 valint that im restoreing to cruise and i need info on my vehicle
did i buy a A body type valiant/
were do i find parts
i need help first time mopar owner got this valiant at a steel runs great needs very little work on body id like to replace some body parts for newer. interior needs done i have everything tore out need floor pans and back fender lower clips. and lower door panels or door if i can find one everything else is good its got a 273 4bbl raceing trany and rear end runs fantastic i want to get it ready for cruising by may as i said i stole this at $1,000 tires slotted mags and engine worth more. Jubba