I'm in the northern burbs. I could possibly take a look at it for you.
I own both an 87 and and 85 to swap a part as part of troubleshooting if needed.
I'm between jobs so I have some time on my hands. I don't charge much.
Send me an email if interested.
Update: after going for an interview today, I'm now employed again.
But I'm still willing to help you out if you need it.