This place did a pair for me years ago. The range on this D1 is way better than my others. But… it’s in the UK.
Repair and programming services for the 10AS module as fitted to the Land Rover Discovery and Defender.
www.technozen-electronics.co.uk
There was another place I can’t find now that sent you fobs and a programmer you plug into your diagnostic port, if my memory is correct.. You have to send the programmer back to them. But, again, they are in the UK.