If that's what you want to do with it, you want less PMV and more mecha. I recommend instead using the vehicle the Info Savant in the first link of my sig has:
Dodge Guardian (14000)
Morphing License Plate (1000)
Spoof chip (500)
Armor 16 (3200)
Chameleon Coating (8000)
Personal Armor 10 (5000)
Rigger Cocoon (1500)
Walker Mode (4000)
AVC 7.62 (2800), Firing Selection Change: Full Auto mod (300), High Velocity Mod (5600), Extended Clip (Drum) (1000), External Smartgun (400)
x61 Ex-explosive Battle Rifle Rounds (610)
x30 Stick-n-Shock Battle Rifle Rounds (240)
Camera 6 (600)
Vision Enhancement 3 (300)
Low-light Vision (100)
Smartlink (500)
Camera 6 (600)
Thermographic (100)
Vision Magnification (100)
Microphone 6 (300)
Spatial Recognizer (100)
Audio Enhancement 3 (300)
Laser Rangefinder (100)
Motion Sensor (50)
The Dodge Guardian is a good base for this, because it is 8 Body but still relatively small and has a built-in weapon mount despite being only Restricted. If you suck at Gunnery, you can substitute a cheaper gun.