Dude, I TOTALLY love how that turned out. I'm painting mine up too, but I'm not sure where to take it just yet. (more likely original character than remake) The Sideswipe head is a perfect fit, too.
And hey, we finally get to see a Spinister without the stubby arms.
Absolutely inspired work! With the Sideswipe head, he completely looks the part! Which are the two Targetmasters you intend for him, though? Because he's got Leader-1 and Over-Run with him in vehicle mode, and Leader-1 and Makeshift in robot form. And are they still supposed to be Tiptop and Heater, or new guys?