It's worth whatever someone is willing to pay. The reality is that 35k builds a pretty nice camaro that's worth about 35k so from an investment perspective it's a tough sell overall.
Ignore Ebay and other online sites listed price. Its the actual sold for price that counts.
Pics will help better gauge the value of this car. It its build is well documented and quality is there then it may be worth $35k but if a dealer or someone is trying to flip it and has 35 in it then they are likely asking for something well north of 35k.