OK, I got the lube plate straighten out as best I could and attached to where it won't move into the ring gear on the differential. I think it will stay in place; there is no pressure or anything on it so it should.
Now to install the trumpet. When I removed the trumpet I removed it and left everything intact. I am guessing that if I jack it up so the other wheel is off the floor, I should be able to get the spline on the axle to align up with the differential.
Looking for advice on how to proceed. I will be using a come-along attached to the ceiling joist in the shed; the same as I used to remove the trumpet.