Collateral: I dont know if this account is worth the btc that i needed
NO.
among other you should sign with oldest staked BTC address, to prove your ownership.
There is
no point in doing that either.No would fill this loan regardless of OP proving his ownership or not.
Op,better lock the thread if you don't have any valid collateral to offer.
This not only makes sense That this is
necessary, before any negotiations,
besides you can not talk behind other Lender,
of course nobody would grant such a amount loan, but It can reduce your requirements, and received the proposal.