The biggest things I have seen with the Roush trucks is that they retain the V8 option for those that have to have a V8 in a Raptor style truck. Because it is a regular F150 that has been through a conversion program, the VIN isn't flagged as a SVT vehicle which would exclude it from XPlan pricing and discounts. Many times dealers are (or were) selling Raptors for MSRP or more. For those that qualify for XPlan, you might be able to score a Roush for much less than a Raptor all said and done.
Case in point. The one I linked to above is listed on the dealer website for $70k. It doesn't have the Roush Supercharger but the dealer is authorized to install it before delivery. XPlan lists it for about $47k (The VIN matches). The Roush package clearly isn't included in that XPlan price and if I tried to walk in and pick it up for $47k they would laugh at you. However, the Roush package starts at $13.5k so it is possible that you could get it for a little over $60k by paying the conversion fees on top of XPlan. Of course this is cost without the SC. Lets say you add that back into the mix and say it costs another $10k. Well you are back to $70k for a 650hp 610lb-ft torque truck where they are selling a Raptor for $75k which is 450HP 510lb-ft.
All that said, the 3.5EB with a chip can put down some impressive numbers.
It will largely depend on what we end up doing. Gotta get the garage done first.