For the ELT mount, Im using a Van's Whelen strobe bracket that mounts on the longerons on the tailboom. Plan to place it on the left side of the tailboom aft of the baggage bulkhead. I will be mounting my remote transponder on a fabricated bracket next to the battery on the right side. Sounds like just the good old fashion on the tail forward of the vertical is where I will mount the ELT antenna. As always, thank you for your valuable input.