Broad-stroke gross profit thumbnail:

Average cost
(material, labor and G&A) per panel: $3/sf x 32 sf/panel =  $96/panel

Average sales price per panel (after commissions, discounts, delivery and other necessary sales-related costs you foresee): $9/sf times 32 sf/panel = $288/panel

Average gross profit is $192/panel

Average number of panels in a typical home kit of panels: 72/kit

Average gross profit per home is $13,824/kit

General estimate of how many kits you feel reasonably confident you will be able to sell in your first year: 100 kits

That's $1,382,400 in gross profit the first year.....

PRICE COMPARISON ON A 1,000 SQUARE-FOOT HOME
STANDARD OURS
WALL PANELS MATERIAL  $3,600   $5,000 
FLOOR PANELS MATERIAL  $5,200   $2,400 
WHOLE-HOUSE FRAMING LABOR  $8,000   $2,300 
TOTAL  $16,800   $9,700 
SAVINGS USING OUR PRODUCTS:  $ / % $7,100 42%

Dave says 4-27-2021:
1. $30,000 is our average sales price
2. We shoot for a 50% Gross Profit Margin. Of that we shoot for 5% of our cost to be manufacturing cost and the rest is material. We try to stick with a 28% Net Profit Margin. However, with adding more team members our NPM is lower until we increase sales. 
3. Our plan is to ship 400 units next year.