So I've been pondering something odd to do for my next character and through various considerations came around to wanting to make a powered armor rigger. Throw walker mode and a couple of arms on a vehicle and its pretty much a drivable robot. Something the size of a motorcycle is about right, and then reminded me of the Robotech cyclones. Since you need lots of slots for these mods the Thundercloud Contrail seems to be the best place to start, it helps that it looks a lot like a cyclone in bike mode. So the cyclone:
5000 Thundercloud Contrail (10 slots)
3000 Walker Mode -2 Slots
4000 Full Mechanical Arm -2 Slots
4000 Full Mechanical Arm -2 Slots
2500 Rigger Adaptation -1 Slot
1500 Rigger Cocoon -1 Slot
1200 Armor Ratig 6 -1 Slot
2500 Nitrous Injection -1 Slot
At 23,700 thats pretty cheap. The walker mode and arms are obvious to make it a robot, and rigger adaptation to make it riggerable, the cocoon is so no one claims its just a bike and they can pick you off it also gives you some nice suit up time. Armor is only at rating 6 since thats the rating limit cap at character creation (which is silly), losing the slot for 2 armor doesn't matter much since its cheap and that same slot will be used for 12 armor as soon as the game gets going. Weapons don't have to be mounted, it has arms and can wield them that way. Nitrous injection was because it had 1 slot left over and I can't really think of anything better to do with one slot, it helps that its one of the best mods ever for any vehicle.
I had considered other vehicles like:
14000 Dodge Guardian (8 slots)
3000 Walker Mode -2 Slots
4000 Full Mechanical Arm -2 Slots
4000 Full Mechanical Arm -2 Slots
2500 Rigger Adaptation -1 Slot
1500 Rigger Cocoon -1 Slot
A little pricier at 29,000, it has better handling and lower speeds, but the contrail will lose speed once you upgrade to more than 6 armor. Armor is fixed at 10, but with 8 body and 10 armor its similar to the contrail when its at 6 body and 12 armor.
Maybe I'll get one of each, they are cheap?