1 week to sell the FAZER or it goes under the hammer (LITERALLY) !!

[Wharfe]

Hmmm, I'm sure that sticking it out til the kids have grown up is laudable on one level but think about it for a minute - how many years of increasing domestic violence (which is what this is, let's be clear) should they have to put up with? How far will you let things go before it gets too much? it's already potentially life-threatening - we're in potential "restraining order" territory here. Your house sounds like a war zone.  If you "walked" would you be out of their lives permanently? Emphatically no. You have a great case for shared custody; it's not like the old days of "the mother gets the kids, dad sees them Sunday afternoon". You can have a decent life, 50% of the time with your kids, and she can (hopefully) calm the foc down without you around. This has got to be a healthier environment than what's happening now. It wouldn't shatter your kids' lives, fella - kids are not daft, they are adaptable and they will get an understanding of situations quicker than you think. My wife left her husband (for several good reasons) and they initially railed against Dad not being around all of the time . But they soon got used to it, were happy generally, and (crucially) came to understand why mum and dad split up. No blame bandied around, just "you two weren't working together". They're both happy well adjusted young adults now.
I'm not about to tell you what to do, but I will say look long and hard at all the possibilities beyond just sticking it out. Whatever, you will need to take careful note of everything she does when, where, how and with pictures ideally. Minute, complete detail.  Maybe also think about finding your local men's group or somewhere where you can talk openly about what's going on for you. Doing that will allow you to get a perspective, air some ideas. Whatever you do, good luck...

Like I said - no-one deserves to live like this. Not you, and especially not your kids.