My understanding is that, if you swap-over the
entire interior, it will fit. All of the seat/panel/dash/pillar/headliner mounts are identical b/w the Camry and ES, but Camry door panels won't fit well with an ES dash, for example.
The cloth interior I've seen in the ES models is identical to the cloth in the V6 LE trim Camrys (like mine), so that might be an easier set-up to work with...
And good for you, getting the V6 together with the manual...it is a worthy endeavor!
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1990 5spd V6 Camry (Still kicking at 393,000km) 1991 Celica GTS -- Pappa needs a 3SGTE...and AWD for all this friggin' snow
Honda my A$$, you just can't kill a Yota...