Don't sweat the trucks. They're easy to modify to look close enough to flexicoils.
The thing that has prevented me from using the mid prod ones is all the crap on the roof, but most especially, the lack of number boards on the long hood.
That being said, Kato number boards suck anyway, so going the route of just using decals to represent them might not be so bad.
I say go for it, and keep us posted with many photos as you go.