I'd let the pros do that one or trade the car in on something new or newer.
European Auto Repair
www.bavarianmotorsllc.com
weaverbmotors@gmail.com
303-656-9268
Best way to get in to see me at the shop is to call or email Shannon and make an appointment.
I used to work for BOZO, They charge over $200 for a/c diag. They do have an ACR2000 (AC machine) that will flush the system, but you will have to replace the expansion valve. There's added labor as well since it's a hybrid. Not a big deal to disable, but they normally have one guy that's hybrid certified since it is a 300 volt system. Anyways I'm pretty familiar with the platform. If you haven't forked out the cash to get it fixed yet, pm me your VIN and I'll get you an estimate on Monday.
I replaced a compressor in a Nissan Altima a couple years ago. Hose was leaking and it lost a lot of lubricating oil. The compressor had seized I bought a compressor used on ebay for $80, got a new hose from rockauto.com for about $80. I bought a vacuum tool that connects to a air compressor for power, and evacuated the entire system for 30 minutes. I had also bought a set of A/C gauges from ebay for $40. Jacked the car up and removed and replaced compressor. Connected the new refrigerant hose. Then I set the vacuum pump to purge the system. Added some oil according to manufacturers specs. Added some refrigerant to specs. Checked the pressures. And the A/C worked good. Talked her into selling it and buying a jeep. Thank god she got the jeep, these dirt roads were beating the Altima to shit, struts were gonna be next...but hey the cheap Chinese gauges and vacuum pump did the trick!