I wouldnt just revise the pneumatics Alex...

Ground clearance - 0 at the front, 0.5 mm at the sides, 0 at the back

You wont move around much then.

Motors - Two magmotors geared for torque

Which Mags? S28-400s or what? What batteries power them?

Weapons - A really nice flipper.

LMAO Id go with a full-pressure flipper, with 2 2kg CO2 tanks, depending on dimensions. What dimensions (length x width x height, in cm) do you have?