4-speed hump install

Hey Guys

I picked up a 4-speed hump that was cut out a 68 Barracuda that I want to use in my 68 Barracuda for the 4-speed conversion. My question is how much needs to be cut out in order to be able to use it?? Th guy I got it from only cut the hump part out and did not take any of the surrounding floor with it. Can I still use this and if so where do I mount/weld it to the excisting floor??


Thanks
Derrick