Here is another BC-1306/GRC-9 supply based on the GE Exec mobile. Constructed by WA2AUI. Bud lived on the "Big Island" (KH6) and had a lot of animals - looks like he used chicken wire to cover the vent holes and trimmed part of the heat sink to reduce size to fit the Ammo Box.   "Improvise-Adapt-Overcome."
K4CHE