Ouch damn man, thats a lot of work. If you can get someone to do some plastic welding and fix the tabs, the cracks arent a problem fixing. I have some shit for plastic which ill spread on the inside that helps bond it. I'm not saying im good, and i know i can do a little here and there to make it work, but having it welding would be the route i'd go and I have no experience in that at all. Like i said, if you can find someone to do that stuff for you, I'd be more than glad to spray it for you