You are right , those 7J2 heads are small valve heads...thats why I went to better flow, larger valve heads( 7K3 are larger valves ,but not as good flow as 5C`s I`m told , 5C`s are also not well known so its easier to get a good 'deal')....and milled down for better compression....fairly inexpensive , comparatively...
I bought the heads for $150, shipping was $45 ea to Houston from NY, had them checked for cc, a valve job and milled for $450 (also drilled larger push rod holes for the new rockers),added the 1.65 rockers I bought new off EBay for about $75, installed all by professional, another $400...Approx. $1100 total...

My shocks were also shot,I bought Delco shocks from Year One , to be similar to the originals...think they were +_$20 ea.

I also recently bought a set of unused older ( I think Monroe) shocks off EBay so I could offer to the guys in town , but nobody needed any....I can check and see which brand,take pics, if you are interested I can sell those to you for $20 for both,plus shipping