As for what it is worth, there are a lot of variables.
I think you said pan to intake with correct internals.
Does it include the correct non dripper valve covers? Hard to find nice ones.
I know you said everything checked out fine, but most guys are going to assume that it MAY need to be bored and new pistons fitted. I realize there are those that would just take a chance, put it together and hope for the best. However, that is quite an assumption. I bought an all original DZ engine in 1983 that had thrown a rod. I am thinking I can buy one piston (still available from Chevy dealer at the time), have the one bad cyl sleeved and get this thing built cheap. Turned out 6 of the pistons had collapsed skirts, which is pretty common if it ever overheated. Ended up buying 8 more brand new .030 pistons and having the block bored. BTW, ran like a scaulded dog with the 140 cam and headers!!! But, the point is that is was much more expensive than I had planned.
So.... what it is worth is pretty subjective given the chances one has to take. I suspect if there is someone out there with their original POP that shows a V0605DZ engine code, it is worth quite a bit to them. For everyone else, pretty much the sum of the parts. Here is a run down of the parts, but these are nothing more than my opinion.
If the crank is still standard AND DOESN'T NEED TURNED it will bring $750.
The block $1,000 to $1500 (just because everyone is going to assume it may need bored).
The pink floating rods probably $400 if they are rust free.
The pan and windage tray maybe $300 (there is a pan still avialable OTC for about $100, but it isn't an exact match.
Set of used standard pistions will bring between $80 and $250 depending on how the final day of bidding goes on ebay.
Intake will bring about $400.
Valve covers (if you have them) about $300 to $400.
Heads, if they haven't been messed with (still have press in studs and no porting) about $400 as is.
Not much demand for a used camshaft, but I am sure there is a buyer out there.
Ballpark is about $4250 with valve covers. Less without. However, if the guy with car 666321 has a pop that matches, it is worth whatever he is willing to pay.
I just sold a V1217DZ block to a guy who had a V1217DZ POP but no original motor. I could have stuck it to him so to speak, but went ahead and sold it to him for $1500. He was shocked, expecting me to hold him hostage for it.