Technically Kyosuke started with a gespent. Or a prototype wildbrautier but that one was a crappy test unit that crashed by itself.
Anyway in the rules here there is the military officer uniform clothing if you want to go pure real and stick with an older model. Since the Alteisen itself was not improving, only Kyosuke. It represents a real pilot specializing in older models.
If you think the buffs the uniform grants are not enough then we can discuss how to improve it.
...I completely missed that it existed! That's basically everything I'd ask for in that sort of thing. Maybe increase the bonus to twice tier difference at least for hit (similar to how Predict grants twice as much hit bonus as it does AC bonus), but that's a gut response that I haven't actually thought through.
Predict's attack bonus scales faster than the AC bonus to avoid stalemates, like Attacker's damage bonus scales faster than Guardian's DR.
However in the case of real robots the in-built weapons attack bonus and AC bonus scale roughly at the same rate (Alteisen has +13 AC/+7 Claymores vs Alteisen Riese +22 AC/+13 Claymores, a difference of 7-9) and they're static so there's less reason to make the attack from the officer pilot suit scale faster.
Is there something wrong with wanting to stat out specific Gundams though? The main issue with OO Raiser is the separate craft. I mean I could just make it upgrades and forget the separation part.
Leaving out the separation part would indeed be for the best, even in the actual SRW games it's just a single unit that gets deployed like that and the combination only ever happens in one cutscene when it first shows up.
Also just me, but if you have time to be statting up specific gundams couldn't you at least finish your character sheet?