Don’t know the miles on your SE or the condition. Also don’t know how much free time you have for the project. I DIY as much as possible and it would be a tough decision to do it or have a shop do it. For $750 labor I would probably have it done at a shop. Especially if they do a lot of these. Be prepared to pay a little more because usually something comes up that makes sense to fix.

__________________
07 E350 4Matic wagon, 06 S430 4Matic, 99 SLK 230
retired W210 (x3), W124, W126