Methinks you need to step back a tad and figure out what you want. A car that can be easily restored to OEM someday? Or, a car that looks near stock on casual inspection? More straight line drag-type speed or a cruiser with great handling? Stock looking under the hood or the hell with that and highlight the all-aluminum engine?
Point is, an aluminum blocked engine and coil-over fronts ain't what I would call easy to swap back. And as CJ and others have already stated, some rear suspension set-ups don't lend themselves to drag duty nor vice-versa track/road work. Hollowing out the power brake booster for a 'stock' look make sense...until one spies those coil-overs and other non-Ford front suspension pieces.
All in all, you've good some great ideas but it's what you want the car to be in the end that counts. I had many of the same issues when I bought my gennie '70 Mach 1 in pieces. Blown engine, bad trans but straight, California rust-free and great refreshed paint. Fast forward, it ended up pretty much exactly where I wanted (no body work or paint needed, but everything else needed attention or replacement) but only after a lot of thought...and a calculator in hand! Point is, it seems you have time due to the body work needed to flesh out all the suspension, engine, interior things you want. Taking your time now will pay big dividends later.