Did you remove the existing bulkhead and moved it or did you make a whole new one?
I removed about 90% of it leaving only the sides that housed the blue rudder wire guide.
After determining where the new retract would need to be mounted and cutting out the access hatch in the fuselage, I made a new bulkhead out of 1/8" 5 ply plywood with a doubler on the upper part. I used 1/8" balsa and trial and error to determine shape and fit.
How difficult was it to remove the existing bulkhead?
Easy as I just used a saw to cut down the bulkhead near the rudder wire guide
Did you replace the fiberglass section you removed to do all the work?
No, it was cut out with a razor saw and will be reused. It will reattach to the fuselage with screws so it can be removed for maintenance. Should have photos by this week-end
Would it be possible to use the Sierra tailwheel retract in a fixed lower position and not have it retract?
I think it could but a better solution would be just use a fixed tail wheel fork and save yourself the need for a pound or two of extra weight up front to balance it out.