Seriously take the cash.
Repair it - Unless you know good people in the trade who will do it for you the bills will escalate out of control. My mates do this for a living & have done for over 30 years and still get burnt.
Factor in the time you will be without a car then the possibility the car might not be 100% to your satisfaction.
Stripping and selling it for spares - Unless you have got somewhere to store it you're gonna have to pay for a lock up, then the time to strip it down & sell, correct disposal of all fluids :headhurt:Is it really worth the hassle
The car will never be the same to you again . Let it go . Go grab a bargain , there plenty out there !!