Well, from a game effectiveness standpoint, buying a cyberarm, cybereyes, and wired reflexes 1 gives a decent return for 3 Essence loss (assuming you have Alphaware). However, it sounds like you want to show more chrome than that. I’d go with a cyberarm, two cyberlegs, cybereyes, and reaction enhancers (level 2). Make sure to take the Burnout’s Way from Street Grimoire at character creation...it costs 15 Karma, but lets you treat all cyberware as Alphaware for purposes of Essence cost.