AC hose question

That's a muffler. Really.

Supertruck - take apart your TXV capillary tube and compensator tube (slides out) from the suction line before they break. Not reusing the suction line are you? Then again, you'll likely get a new TXV w/ the kit.

You may want to consider replacing the Expansion (TXV) valve as well. If it's stuck from sitting for many years it will be a headache that will cause you to remove your new refrigerant and replace the valve. You are going to need new hoses made up to mate with your new Sanden compressor with the fittings angled properly to mate up with the compressor fittings. You need to first mount the compressor on the engine to see what that will look like. I've used a company called Cold Hose in Florida to rebuild A/C lines and they did a great job for $30 a hose with fast turn around time. That can on the end of the suction line is a muffler to deaden the impulses of the RV-2 compressor. It also has a fitting that matches the RV-2 suction port, but will not match your Sanden. Sanden compressors also have their suction and discharge ports in certain positions and may need to be "clocked" to fit your application. Mount up your compressor and you'll see what I mean.