Some upholster/canvas repairs make them if you give them the specs. couple of locals on the Sunny Coast do good board bags on request. Will send a text to you.
try these guys, I know they make bags for guys to transport stuff right up to OC1 canoes: Big Mal custom board covers U 20, 4-6 Hawker St Currumbin, QLD, 4223 (07) 5525 6338
The Prolimit bag is white underneath, so you could mount your board upside down on hot days.
It fits a Starboard Phantom 377 quite well, so should fit your Speed as well. The only complaint is it is made for a SUP and the center handle is mounted slightly non centre for a Racboard which is slightly tail heavy.
