Vic..I think you have a more standard type ring pack on your pistons, correct.
don’t you have flat top Icons?
My guess on your motor if you used a quality vacuum pump( STAR seems to make the best) is maybe 4 or 5 numbers in the 1/8th.
I think maybe a bit more with low tension rings.
Have thought about such an upgrade myself at different times over the years, but for the money and possible grief( wristpins, etc) have never tried it.