As Mini Art is releasing Valentine model kits by the dozen one could expect a DD sometime. According to the Wikipedia article the Valentine DD was used as a training tank. The marks converted into DD configuration included Mks V, IX and XI. As Mini Art has released Mk V and have Mks IX and XI in the pipeline there is no excuse not to build one anymore. If Mini Art will release a proper Vally DD I do not know but let's have our fingers crossed!
Whatch this Valentine DD drive off the flat bed trailer for the War & Peace show in 2011.