I can show source code to trusted dev, this is not a problem if only he will promise me in public that he will not release the same wallet after observing source code.
One again, my intentions are clear i want to provide good GUI wallet and receive developer donations, because i can see 14000 XMR funding for GUI wallet that is another RPC thing.
https://forum.getmonero.org/9/work-in-progress/2476/the-official-qt-gui-project1. The 14k was liquidated into fiat immediately because Ilya's payments are denominated in fiat currency
2. It's not "another RPC thing", Ilya has written an API he hooks into from scratch:
https://github.com/monero-project/monero/tree/master/src/wallet/apiBeyond that, this entire story, the domain sale, you being the only person able to communicate with the domain owner, etc. is all so insanely fishy that I can't believe it to be anything but a setup or a scam. If you're genuinely just a developer who is so good that they managed to do all this work in a few days then the onus is on you to prove it.
You forget that we've worked on this for 2.5 years, and many of the contributors and developers and Core Team members who have worked unpaid on it have a stash that is smaller than 10k XMR. Coming in here and demanding that amount of money for a few days work is simply insulting to the people that have made Monero what it is.
In addition to that, open-source development never works in a "pay first deliver code later" manner. If you want to get paid then release the code, and raise funds afterwards, like every single other FOSS project out there. As it stands right now you are nothing more than a common scammer trying to leach off the community in deference to the people who have actually brought Monero to the point it is at today.