I don't want to be harsh but I'm not sure that you fully understand how this all works.
It is usually not like that you look for a specific show and you end up finding it someday (unless you know it really exists and someone actually has it).
There is a massive amount of luck involved in the process. MANY of the shows that we found over the years, we were not looking for and/or had no idea that this even existed. Often when looking for something totally different.
Even when you know that something very likely exists, take PR 2002 for example. You have to find someone who actually has it AND is willing to trade or sell it. And very often someone that has access to something like that due to a job, they wouldn't risk it for something like that. Unless their is some weird coincidence that they got this and won't get in trouble.
We thought about this Ostrick thing a lot, first of all I'm pretty sure that you cant do crowdfunding without even telling him about it. There might also be conditions applied to the crowdfunding that you promise the donators he doesn't agree with.
Who knows if we are even able to raise such an amount. If we raised the money privately there would be no way for us to ever get that money back, which is the main problem. Unless we were to sell copies, which we probably can't and shouldn't do anyway.
Even licensing it, to just put it on youtube or whatever might even costs this much. It seems like a ton of money to us but this price is totally realistic in the TV/Film industry.