You don't want to know.
Lowes prices
2" $3.40 per 10'
2.5" $6.65 per 10'
3" 10.54 per 10' (That would be $474.30 before tax for this project)
300.18 Raceway Installations.
(A) Complete Runs. Raceways, other than busways or exposed raceways having hinged or removable covers, shall be installed complete between outlet, junction, or splicing points prior to the installation of conductors. Where required to facilitate the installation of utilization equipment, the raceway shall be permitted to be initially installed without a terminating connection at the equipment. Prewired raceway assemblies shall be permitted only where specifically permitted in this Code for the applicable wiring method.
For those who want chapter and verse. Conduit is supposed to be complete before wire is installed. I think the logic is that sliding metal conduit over wires could damage the insulation. PVC probably not as big a deal unless the jacket gets damaged by the glue, and since it was installed without the benefit of soap, you will probably never be able to remove it.