$5k more in PV for 12kW, but that is standard for 2000 sf version, so is not counted.
Off-grid autonomous with AWG ($2k) at 1 liter per hour and 500W kW solar requirement (25% duty factor)
Distiller for 3kW (6 gallons for the day) ($2k).
Heat Storage of 20 totes - $3k
Hot water heat pump - extra $4000 [1] at 20 gph capacity or Hot Water Heat Pump instead and 48kBTU (see Hot Water Heat Pump
No added cost - open source inverter,
Rainwater collection - 2000 gal. Utility house is an adjacent enclosure.
4 tote Biodigester waste processor with 1000 gal processing volume, for 4 people. -$2k
Shit frier backup - $2k.
Biodigester works with Shit Dehydrator, and final product is greywater for the greywater garden.
Service contract for utilities (water, heat, power, waste)
Power Wall of 1 kWhr for tools etc, $2k.
Compressed Air Storage backup. $2500 in cost for 1 hphr. This is equivalent to batteries, at lifetime design instead of throwaway.
20kW Wind turbine - $5k

$15k extra for full autonomous option. With hydrogen - cost may be more.

Other at extra cost

Extreme Seed Eco-Home