How can I get repair parts for my eos elan 7 Canon film door?

SOURCE: Replacement Film Door for Rebel Ti

You should be able to get that part direct from Canon USA. Here is their info: For toll-free technical support, please call 1 (800) 828-4040 during regular business hours (currently Monday-Friday 8:00 a.m. - 12:00 midnight. EST, Saturday 10:00 a.m. - 8:00 p.m., excluding holidays).

SOURCE: Canon Rebel Ti Broken Back Door Latch

Hello;

There is one more screw hidden under the pressure plate, push it down and slide it towards the hinge to remove it. Welcome to the secret society! MF

SOURCE: how to replace the door latch on a canon rebel eos ti

The cameras film door has a very small phillips head screw inside the battery doors hinge. Its a pain to take out & replace if you hands are shakey for this screw is so small. Also installing the replacement hinge would be a little harder to install tha removing the broken one.
I hope this information will help you. A camera shop should be able to do it for free if you maybe purchase some items there. Most shops which are very small and privately owned shops will do this for you

SOURCE: I have got an EOS Elan II E Film Camera (Cannon).

Hi, all canon EOS digital cameras can take all EF lenses. An EF lens from 1989 will fit a Digital body from 2009.
The newer EF-S lenses will only work with the smaller APS-C size sensors on the cheaper consumer bodies.
Hope this answers your query, please take the time to rate!

SOURCE: Film door latch is loose

Same advice I made to another post. At some point you got to make a decision. There is a lot of plastic pieces that can break. Canon doesn't support the T series from what I've read. You may consider getting another one. You also have to consider that the fix may not work. Then what do you do?