Total economic damage – ASSISTANCE!

Good evening dear Com, I had an accident (wasn’t guilty -> debt question clarified). The expert estimated 6942€ for the repair. Restitution value is 7550€. What possibilities do I now have to buy a new/used vehicle (from the dealer of course)? I find vehicles that would be priced in the frame, only I would have to make cuts in the equipment, let alone my subsequently bought rims, springs and multimedia equipment. I somehow avoid this “restitution value abstinent residual value mismatch”? Would you like to pay me the repair costs abstinently of the VAT and sell my accidenter himself, but that doesn’t work for anyone? Or do I always “just” come to this 7550€ replacement value? Hope you can help me further, don’t look through it any more. The expert says something different than my insurance broker,…. With kind greetings