Wow, trying veneer with that large of surface as a first is bold (and risky).
I know that depending on the woods and dimensions, when you go big you really need to use the proper glue or changes in expansion can cause the veneer to crack and do other undesirable things.
Contact cement, as a process, can be laid easily enough when treated like laminating a counter top (use slats to elevate the laminate, position, then remove slats from the middle outwards).
Without hammering, a vacuum bag, or other flat, high pressure clamping method you are destined for a lumpy surface.

Paul (Shipwright) certainly is the go to help desk guy here.

Dave,
TBII has that bright yellow color that makes for hiding squeeze through nearly impossible. The viscosity is also way too much IMO.
I have had success for controlling squeeze through by eventually learning how much glue is enough. Before then with waxed cauls, I'd lay two layers of paper towel between the caul and veneer before pressing. The paper absorbs the squeeze versus having it ooze across the veneer surface. Sure, the paper will adhere to the pores where the glue comes through, but a quick scraping easily removes that and no dealing with the embedded mess of a fingerprint size glue stain to deal with.