Okay one of the players in my group is making a Rigger. The basic background is he started out as a helper to his father, family and friends as a shade tree mechanic. As he grew older he worked in various labor positions, as sort of an apprentice. Dry walling, roofing, wiring, plumbing, wrenching-all of that and more. He has a decent knowledge of how to use most tools, and how to drive a lot of industrial equipment. As an adult he's worked variously as a short and long haul driver, as a operator for various road and industrial equipment.

He recently came into a little bit of money, and borrowed against it. (The In Debt negative quality) Unable to pay he's been forced to take work as a wheel man for the team. Now I used this site as inspiration, but I want to get some outside input on what sort of skill groups he'll be looking to use, or need to make a decent wheel man.

Currently this is the vehicle he's settled on using.

Nice car. I always liked the 'up-opening doors' thing. Good fun.
Try the 'pilot groundcraft' skill, for one thing. I fhe's a handyman, I might suggest you go for industrial mechanic (the skill), and definitely get a 'shop' of tools, since he does all kinds of labor.
Mod up the car heavily, armor it, add a chemical seal (always good to have). If you're feeling extremely paranoid, also mount a weapon, just for kicks (though that might be illegal).
If your character's likely to have any knowledge of it, get a gun. And if you're feeling in the mood for humor (which you might be), or are playing in a pink mohawk game, get 'exotic melee weapon skill: Wrench', and mod up a wrench to be a badass weapon.

Right now weapons, and fancy stuff like a chemical seal, and armor, are out of the question. (Not enough money.) But down the road that's definitely on the menu. Right now I believe three of us have no, or a single weapon between us. And frankly I didn't want to buy that one.

I missed the Industrial Mechanic skill, and I'll be looking at that shortly!

I understand the concept of a low-powered game with very role-intensive characters, but I mean make him able to hit people with a wrench - which being a handyman, he's likely to carry.
In any case, have fun with it, and make him how you'd like - worst case scenario, take a bunch of the mechanics skills and piloting skills, and go from there!

He'll be defaulting, but it's worth it. Luckily if he needs to beat people up for us we're pretty screwed.