Reduction in benefits after an IME

Looking for advice. I have a pretty straightforward case--knee injury five months ago, surgery three and a half months ago. Blessed with relatively few headaches from the insurance company and my company.

My job is entirely physical, there's no "accommodations" when all you do is stand for hours/walk 5-10 miles/lift 50+ pounds multiple times a day if you can't actually do any of those things. There's no desk job until I'm back in shape, at least not one my job has provided any information on.

My surgeon's been reporting me as 100% disabled. I'm working my PT, I'm doing everything I'm supposed to, I can't heal any faster than my body will let me.

I had my first IME and the doctor ruled me as 75% disabled. Living off 2/3s of my actual wage is killing me, even less than that will destroy me.

The advocate office told me to file a RFA 1W. She also said I can hire a lawyer if I want but since my case is so new I shouldn't have any problems. No guarantees of course.

I've never been to court before. I'm also nervous that me disputing this will somehow get back to my company and I'll get in some kind of trouble.

If you've had this issue, what did you do?