What should I do with the motorcycle repair?

Hello, I took my 2002 CBR900rr into a Rick Case Powerhouse of Honda repair shop. I asked them if they could replace the head gasket (because last time I was there, they did a full inspection and discovered a blown head gasket). I assumed it would be a 300 dollar charge with labor.

The sales rep said sure, but he would like for his technician to run compression tests firsts. After all the testing, I get a call and the tech recommended that they take eight hours to inspect the motor because high compression could've (or was - can't remember which one he said) been pushed into the radiator. The procedure would take an 850 dollar deposit and upon inspection I could potentially have to get a new motor in there for 6500 dollars or buy my own and have a 1500 dollaro or so labor fee. They said before replacing the head gasket I should do that because there could potentially be a warped cylinder or something warped idk

I just don't know what to do and it's sad and frustrating because I can't come up with all that money I'm not rich and I'd love to ride again.

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