I have some experience with collectables in general. In this case it would be worth the effort to photograph these individually. I would also suggest listing them on eBay. I know it is a lot more work and your friend probably is looking for Bitcoin, but you will get a much larger return this way and can just use the funds to buy Bitcoin. Of course this could take a while to sell them all at full retail, but that is the main difference between selling individually and as a lot. Good luck.
I tend to agree on this one. The older gi Joe's have a huge collector base, just probably not here. Ebay will give them a lot if exposure to more collectors in that area. Then buy bitcoin or hey splurge and buy some viacoin