To be fair, if the new Skids isn't a full on u-turn back from toon accurate aesthetic, you'd be okay picking up MP10 or MP13, say. They are great figures that capture the character really well. You could get those without going too far down the rabbit hole. Once you get to MP22, you start the descent into toon, and then it's difficult! The vast majority of figures between 10 and 22 are Datsuns and Lambos, plus tapes for Soundwave, so other than Wheeljack and Bee v1, you've only got the Seekers. Point being... unless you specifically want a bunch of Datsuns or Lambos, and if you're into ER you've got them in mini MP form, there's not much left there before you turn toon.