Consider the poured concrete foam.
A few additional ideas:
Consider having the wall tall enough to provide 9'6" from the floor to the bottom of the joist or truss cord. This will permit adaquate space for HVAC and dropped ceiling yet provide a standard 8' finished ceiling height.
Consider proper grade/swale design with generous roof over hang and down spout runoff.
Both an external and internal footer french drain with 120 utility and 12 volt Watchdog back up battery system. Check the Granite nature of your area for radon issues. If there are radon issues an extra sump with a sealed top for a remediation pump is a handy extra, and cheap to add at this point.
If the floor is not poured at this point you may wish to run some electrical conduit.
In our last place I had a 3 step down - 3 step up short depressed passage instead of a duck under for the RR. An idea I picked up at Cherry Valley RR club. Cost a few hundred extra while under construction.
Stair case position will be very important.
All mechanicals need to be positioned to accomadate benchwork.
Be careful where any interior meters or valving is placed. Make sure the electrical service entrance will not interfere with benchwork or traffic.
Tankless waterheaters will help cleanup the floor space and get rid of that ugly H2O tank.
Back up check valve for basement drain, toilet.
Make sure any ceiling mounted shut off valves will not be positioned over the layout.
Can the electrical service entrance/circuit breaker box be on the first floor anywhere?
Now is the time to have engineering adjust beam size for needed support column location.
Make sure any water treatment access will be doable.
If you will be in this place during your senior years consider making it ADA compliant. Wider doorways, level finished floor surfaces, higher commodes. All special touches are must cheaper now. tt