、。
If the real thing actually comes from over here, Sekka will stop complaining.
Literal
Real-thing [subject-が] this-side [from-から] go-[if-ちゃえば], Sekka-[diminutive-ちゃん] [also-も] four-or-five say [that-って].
Casual conversational prediction. 現物 ('the real thing, the actual item') is a business term that's spread into casual speech — contrasting with descriptions or imitations. ~ちゃう is the casual contraction of ~てしまう; ~ちゃえば is 'if (one ends up doing) X.' 四の五の言う ('to grumble, to quibble, to complain') is a set idiom literally 'say four or five' — meaning making excuses or petty complaints. ~って at the end is casual quotative 'it is said/they say.'