The 'Printer Friendly' version of the core rules can be downloaded from HERE.
The rules for this particular faction can be downloaded from HERE.
There is a starter set available for this faction composed by five Ganger miniatures.
The metal models come with a plain 25mm 'slot' base and the later resin ones come with the same size base but without the slot...
The pictures below are in the same order as the above written descriptions but to be honest which is which is pretty obvious...
This model was unlocked during the recent Kickstarter so I'm unsure how long it'll be until it's available separately.
If you happen to have missed them you can find the other articles at the links below.
Introduction to Punkapocalyptic
Faction - Black Blood Children (Part One)
Faction - Black Blood Children (Part Two)
Faction - Junkers
Faction - Mutards