So my alternate plan was to get the base model with the eibach coil-over kit, and the 625 frp supercharger. Then down the road I will replace a few other things and a couple more mods.
I would seriously look into the griggs koni coilover kit. The numbers from the base griggs kit would be can easily compete with with the new boss. Griggs impressed the hell out of the shelby brass when they brought some cars down to vegas this past year. Check them out.
Also if you do want the boss one will be available at msrp or below if you look out of market....