you can never find a "genuine" accelerator cable that would work in this situation, you have a half n half situation.
this engine is a hackjob 2.0 and incredibly underpowered for such a large car. And with CNG I bet you must be going real slow. and this does not even look like an 82 crown engine bay, it more looks like a 93 or 94 crown engine bay. The 82 crown engine bay does not use gas springs neither has such fuse boxes neither such brake booster