06 GTO front and rear seats in a 70 Chevelle....help needed

[Saleen04]

I just picked up a set of front and back GTO seats for my 70 Chevelle to replace the bench.

How do the fronts mount to the floor? Which holes do you line them up with and how what is the best way of making new holes to accomodate the seats?

How would you make the power seats work?

How would you go about widening the back seats to make them fit?

What has everyone done for the seatbelts?

Thanks for all the help as I would rather going into the install with more koweledge.