Wheel pants will pick up about 3-5 mph from whatever you are at without them.
The speed kit does not have a large effect, maybe 1-2 mph if you are lucky. Most importantly it smooths out the flow by the strut/wing attach and reduces the fabric buffeting behind the front strut.
The 3-Blade MT has been found to pretty much be all sex appeal. We have not seen any performance advantage over the 2-Blade MT. It just looks like you belong parked next to the Extras.