Sure thing Chris - here you go
My father in law built it. It's basically a frame of 42x19mm pine (1 1/2" x 3/4") with 3mm (1/8") plywood sides. There are dowels with little stainless steel hooks (he used MIG wire - you could use paperclips). The false floor (with little holes in it) has a
light bulb under it (the sheet stops the juices landing on the bulb). There are air holes above the dowels on the sides, and also at the bottom. All the holes are covered by flywire, and there's a door (open for the photo, obviously) the seals up the front.
The little fan is sitting on the false floor pointing up (this photo was taken after 24 hours - biltong's been in there for about 5 days now)