Nice build. Its always good to see one rx saved when another one goes to the crusher.
As for BP vs SP.... that really is up to you. I've gone through this thought process countless times myself and its never easy. The truth of it is... if you plan to drive the car, even remotely regularly (like 1-2 times a week for more than 100 miles/commute) the BP really isn't worth the headache. If its a dedicated track car and gets very occasional street use, no worries. This all of course depends on the extent of the BP and the rest of tuning that goes with it....
You can always get another car and BP it and have both
