l67 swap

i want to do the swap...the God swap....but i want to stiffen up the suspension first.. i want to auto cross it. can't find any after market anything. want to get bigger sway bars yada yada yada. well the l67 is the motor that comes in the gtp, regal gs, bonivelle ssei. those the supercharged 3.8. well my buick as the 3.3 which is the baby bro of the 3.8. i want to swap the engines out. how hard do you pros think it will be. i know wiring is going to be a .... you know. but what about mounts......any ideas about suspenion first. then lets go for the engine swap...thanks everyone