It doesn't meet all the specs but Britain offers the Infantry Carrier No.1 Mk II which can seat six troops in the rear compartment and a driver and gunner/soldier/commander up front and is armed with two LMGs and has radio equipment.
10mm thick armour, 3.75tons weight, 12ft x 6ft 9ins x 4ft 9ins, Ford V-8 85bhp petrol, 30mph, 130 miles and 1,200lb payload.