Lets assume the box and tools and all were 70k new. Big assumption but then again that screwdriver drawer was well stocked. If the wrench, ratchet, and socket drawers are as good, it's possible. Lets then assume its not all engraved or beat to hell. If I were to buy it to resell on ebay figure ill get 40% taking my time, so that's 28k. eBay and PayPal take 3k in fees, and I'll have 2k in shipping, boxes, labels etc minimum. Now I'm down to 23k. Depending how desperate I am to spend the next 6 months selling and packaging that stuff, I'd give 8-13k for it.
I don't see any user spending 13 for it. Something like this needs to be broken down and sold on eBay or to a reseller.
If I had 10k and lived near him, I'd still go look. Explain your reasoning, wave the cash, and see what happens.
Often I'll talk up how great the box is, then just offer on the tools saying I can't afford the box. Hopefully high value of the box makes the price of just tools more reasonable