I bought three of the RTAs but only one of the kits that came with the sub-ohm tank that you could buy an RTA deck for.
The deck I found was at myvpro.com but they are now sold out.
I've been looking on Google for the last 20 minutes to see if I could see any other place that has them, but no dice. Well, that's not exactly true. I did see some kinda iffy-looking places that said they had them in stock, all of whom used the same picture from vapeciga, and when I checked vapeciga, they do not have the decks. So I wouldn't trust those places with my money. You may feel differently.
Sorry, those are great tanks. I hope you find decks for them.