Hi dude, I restored a 21' cabin cruiser many years ago, I removed all the cooking appliances as it caused a problem with LPG storage and drop out points. In fact I gutted the whole thing on the water and rebuilt it by hand.
When it was about 90% complete I had the safety check done by a surveyor on the website list with the understanding that I could have a free recheck if anything was wrong.
I had an advisory on ventilation into the cabin and a fail on the battery isolation switch and battery box but to be honest I already knew that as I wanted them to advise me rather than do the job twice.
When complete and although it was perfect, I ended up hating it
Mooring costs and constant trips to make sure it was ok after a storm, I even built mooring posts that would rise and fall with the water level...
And the only way you can go is either up or down river seeing the same things over and over again
But having said all this, it was in a nice spot and nice in the summer just to go and sit and have a mug of tea
Also you need anti fouling if you leave it on the water.
So my best advice to you would be... Unless you live close by and use it a lot or just to go there to chill out and read a book, then keep it at home and trailer it for now. If you really want it on the water get a survey and see what happens