Transmission tunnel for rover V8

[dan_g8]

Hi all, i am planning on putting a rover v8 into my roadster, over the next few days i am planning on geting my pedals/ foot well sorted out. i was just wondering what the best size transmission tunnel would be. I am on the look out for a 4 speed p6 gearbox but havent found a good one yet so cant one. Has anyone used this gearbox and would i get away with a type9 transmission tunnel?

Thanks

Dan