I see this is your first post so welcome to the Forums.
Let's take a quick look at the 2020 build on Ford web site because I have a modified 2012 which does not have independent suspension and does not have many of the features now standard on the S550 Mustangs.
The 301A package that you want is not that expensive coming in at $2000 on top of the $35,600 base price for the base GT coup.
The MagneRide comes with the level 2 performance package with a rather pricey $6500 added on of the $2000 already mentioned.
If you want active exhaust you will need to step up to the next class which is the GT Premium with a base cost at $39,600.
In my opinion, going from the 4 cylinder (Toyota, Nissan, Chevy, Ford??? what ever you now drive) to the base GT is going to be night and day and you have a good canvas to do upgrades. Stretching out to the GT Premium would be very nice and give you a lot of nice standard features for the buck however, you still need the expensive $6500 option on top of the base price of the GT Premium to get the MagnaRide suspension. So you need to determine how bad you want the suspension.
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