8000 images???

If I need a 3D processed (not the "full 3D" version) that includes about 8000 20MP images (5300 x 4000), is this the right platform? This is a one-time project. Do I do it with pay-as-you-go or a subscription? Is there even a subscription that works for this? Should the images be "dewarped" when initially taken? Thanks for the help!