There are two small cup holder recesses in the centre console.
I would be interested to see how you how you with a GT3076. The manual stagea is a big lump to get off the line and I think it might be a bit docile down low but will haul once a few revs are onboard.
The stock clutch will hold reasonable power. Mine was FUBAR'ed on arriving from Japan and wouldn't hold decent power on the dyno. I went through two cushioned button clutches. The first had issues from the date of install and was replaced soon after. The 2nd one was a pain in the arse to use on inclined roads in traffic due to the weight of the stagea, it bogs down so easily with a button clutch or you need to launch it.
The current NPC clutch is so much better for the street. NPC higher clamp organic clutch is a gem.