091 Into a Bug, How much cutting or modding is involved?

[VRSICK]

I think i'm going to go with a 091 tranny, since alot of people have pointed out the fact that it can take a beating and come back for more. How involved is installing an 091 into a standard 70 beetle? The most that i've heard is that you have to widen the tunnel where the shift cable goes, because the little dildo (can't think of a better word) at the end of the tranny that points to the front of the car is bigger on the 091 than on the stock type 1 trans.

Any more info would be great!!
Thanx