Upvote:2
It appears that you have significant hurdles to overcome: funds parking, and that crypto currency is not accepted by virtue of being crypto, nor are gold and silver precious metals as they are not liquid assets (as well as being highly volatile).
Before application, you may wish to look at the guidance offered by @GayotFow in Should I submit bank statements when applying for a UK Visa? What do they say about me?
Additionally, this site sees a lot of questions regarding PLAB, and you could review those for relevancy to you.