Once the second coat is dry you position the veneer, and orient the grain to your liking, then use an iron, on high steam, to seal the veneer to the plywood. It could not be simpler. After one use of Heat Lock I am a convert. I will likely never use contact cement, or wood glue, for veneer work again. I used to really dislike veneer work but this stuff makes it very easy.
Once the veneer and wood cooled I used my router and a bearing guided flush cut laminate bit to trim the edges. You'll want to orient the veneers edges best for your situation. I had the sides over hang the bottom as no-one will be looking at the bottom and they will be seeing the sides. Oh and don't tell my wife what I do with her iron..