>>9964389welp, it turns out that SRX is kinda retarded. lore wise, and design wise.
have you seen how SRX transforms? R-3's small hips is the one that is supporting the whole leg of SRX. parts forming is the best possible solution they can get to a plausible SRX.
finally, Katoki designed a mecha that can't be replicated to a toy without partswapping.