Gaggenau Dbl Wall Oven Tight Latch Series 100 EB194610

[askulte]

Hi Appliantologists - I've got a Gaggenau double wall oven (Series 100), Model EB194610, guessing about 15 years old. The door lock latches to pull open the doors have gotten very stiff, to the point where the handles broke off! (Oh joy, $120x2 for Part Number 00157481, the handle bracket parts, I may try to weld it or machine something from stainless). 

First dumb question - How do I slide the oven out of the wall? Is there a lever somewhere to open, or a series of screws? The owners guide doesn't show details, and I haven't been able to find an install/removal guide online. Everything is geared to the newer 200/400 series now... Parts diagram hasn't cleared it up for me either.

Second one - I'm guessing it's the mechanical lock that is either stiff, or has gotten so worn that there's a shark's tooth profile that doesn't release the door's roller latch easily. This lock is part 00299830, $123 for each oven, and out of stock at Gaggenau USA. If I can get the oven out, I'm guessing I need to remove the side panel to get at this? I can try lubricating it, or grinding out the worn portion that curves backwards. Otherwise replacement handle brackets will fail again as my wife pulls open the door with all her might! 

I'm not a pro appliance repair person, so it seems I can't join the site as a pro member, but am very comfortable maintaining & improving our home (just installed several mini split air source heat pumps and upgraded the house with a 200A circuit breaker panel). Any help would be great, and would be glad to throw a few bucks towards the site (or homebrew too...). Thanks everyone!