Interesting. But how would you recover a wallet without having any access to the keys, phrases or other sensitive data? That is technically impossible. If that data is provided and the wallet is recovered, then you would have access to all the funds in it. Upfront payment doesn't make sense because after recovering a wallet, you will directly have access to the funds.
Interesting to me too. A do not know how the process will work however I will follow this post to see where it goes. I am sure there are people who will need assistance from OP.
Good luck by the way.