Two parts questions

Need to replace my gas tank and would like to also replace rear shocks. Any suggestions for sourcing the correct tank and shocks that fit a ‘68 Coronet 500? I guessing someone has part numbers memorized and maybe even knows a reasonably priced vendor?
Thanks in advance.

Spectre should have the tank and is likely available multiple places so do your shopping,

Shocks, multiple choices depending on your needs IE: driving style/wants. Any brand but monroe