Just crunshing some arbitrary numbers. Presume J takes 50" between rows and PE 40" Aus-US one way flights, full plane in: J $3500, PE $2200, Y $1000
New config: J 42x3.5=$147,000
PE 28x2.2=$61,600
Y 166x1=$166,000
Total: $374,000
The following is 8 abreast seating and no PE
Option 1: 42 x J @ $3,500 = $147,000
186 x Y @ $1000 = $186,000
Total: $353,000
Option 2: 34 x J @3.5 = $119,000
210 x y @ $1000 = $210,000
Total: $329,000
The following go to 30" seat pitch for Y 8 abreast.
Option 3: 42 x J @ $3,500 = $147,000
198 x Y @ $1,000 = $198,000
Total: $345,000
Option 4: 34 x J @ $3,500 = $119,000
226 x Y @ $1,000 = $226,000
Total: $345,000
So seems like the mix in my opinion is pretty good allowing for aspirational upgrades.