this info is all over, and if you're doing this swap there are far better places to search, but for my own selfish reasons
Toyotapartsdeal.com was the best price I found, but toyotapartsoverstock was pretty close.
Trail gear has the complete kit for $299, which is within $10 either way of the OEM and may or may not be OEM parts.
Rear sump oil pan conversion parts for 2.7L 3RZ-FE
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$80.24 12101-75060 Oil Pan, (T100 2wd 2.7L, 6 qts)
$50.46 15104-75020 Pickup Tube & Strainer, (T100 2wd 2.7L)
$13.97 11494-75010 Oil Hole Plate, (T100 2wd 2.7L)
$ 0.92 15147-75020 Oil Strainer Gasket, (T100 2wd 2.7L)
$ 8.68 15301-75020 Oil Gage (Dipstick), (T100 2wd 2.7L)
$ 9.21 11409-75020 Oil Gage Guide (Dipstick), (T100 2wd 2.7L)
$ 0.78 91651-60614 Bolts (Oil Hole plate), (4) Req'd
$ 8.95 00295-00103 FIPG (Form in Place Gasket material)
also got 10 flywheel bolts as they are torque to yield.