I've been told that you just need to change the 15amp fuses to 20amp and change the inlet wires to 20amp, which you'll know because of the special plug. I've yet to check with LOR but has anyone else done this?
I have not done this, but it seems like you are missing a third step. I would e-mail Dan at LOR. I have never had any problem getting a response. You might also check for a how-to on youtube.