refer to the kakabox build index.
that thread if one of my inspiration sources )
bolt-ons are allowed but rear strut tower do not have top sprint *cup* so apart from shock rod sticking out of the bushings )
drilling chassis to get additional mounting points is not allowed (regulations are not that strict but I dont want to go slippery way and risk to be moved to upper class )))
front strut bar - definitely yes
x-bar bolted to upper front and rear lower safety belt mounts - yes
apart from suspension mounting points I plan to redo welds on door portals and side sills (used translator, is this the right name for the floor element at both sides of a car? you know it rusts often ))))
car seems to be a little weak as when I jack it up a tight door latch begins to drag (