There are two types of the hinge; my MCP5500 had the (earlier?) short version which was much more work to replace. The long version is much easier.
See their parts for remote controllers: link
I also replaced the keypad on one of my BL1000s along with the missing rubber feets (those also fit the MCPs!) and that really makes a big difference!
Also a tip: if you find a part that's listed on the , you can use the contact form to ask getting them available to your order on dksoundparts.com, should be usually possible.
Location: Helsinki - Finland
My B&O Icons: