I think it's gonna take you a lot longer than 10hrs to just those pews only
I'd sure be dual tooling them
I'd have a three man crew too
if fabric allows, glided large/long stair tool (lowered PSI) on the flats
Upl tool follow-up detail rounds/corners/edges
third man wiping wood and any dribbles that hit the floor (assuming hard surface between pew rows)...as they are here
they'd look bran'new when I was done ..fo-reel
he's scrub 'n run scampooing the carpet ...so a couple/three hours smearing gunk around the wool would be all the time needed there
(don't know what his are for candle wax)
if just one SS tool on all those pews and kneel pull downs......he's gonna be there minute that's for sure
Or he'll be blowing thru them doing little more than making them wet .....
..L.T.A.