Scott's been working with DSE to narrow the track width a bit on the IRS. I bought all their control arms and sent them out to Scott, who cut an inch off each one. He's also building adjustable upper arms.
If this were a stock 5th Gen Camaro, at stock height, I'd be a little worried. Granted, we're a boat load lower, a 2nd Gen and do not need all the travel. I think we'll be in good shape.
He also did the TR6060 mods for the tunnel and 4th gen center console. We're working on the e-brake handle now. It will need a flat spot, under the center console slot and the cable passes through a hole later back, under the rug.
It's funny, I thought I stole the idea from LS1tech, but also found an install here. Stealing the pic from Woody - This is what it should look like: