ProVan was a prototype 60% PCB that incorporated elements of the MiniVan keyboard.
There were two versions of ProVan that accomplished different goals. As it was designed to fit into standard 60% cases, an official case was never designed for ProVan. Retro60 was the only 60% case created by TheVanKeyboards and is compatible since it used a standard 60% mounting pattern.
ProVan V1 was designed to extend a MiniVan to fit into a standard 60% case. It was effectively a MiniVan layout with an added number row and five 1.75u modifier keys in a column down the right edge of the board.
ProVan V2 featured an entirely new design based mostly on a standard 60% layout with a bottom row that supported multiple modifier options. Interestingly, the spacebars were 2u/2.25u, which is flipped from the standard 2.25u/2u found on the MiniVan and ProVan V1.
Haven't made the layouts yet. Look at the pics above and PCBs below to get an idea.
Rev 1.0 boards are red with white silkscreen. The front of the PCB includes the text "Designed by Evan Sailer for TheVanKeyboards" and an unattributed quote stating "The ProVan is proven to increase performace". A small, pixelated picture of Evan's face is included between the spacebars. PCB-mount stabiliser holes are included for the spacebars and left Shift.
Rev 2.0 PCBs are black with white silkscreen. The back of the PCB includes a large circular logo with the text "ORIGINAL 9000% CERTIFIED" in the middle surrounded by "Type Different - The Van Keyboards Seal of Authenticity".