Sorry for the delay. Here's the latest from my contractor. He suggested I buy Sheoga engineered unfinished (https://www.sheogaflooring.com). Looks like a really nice product with 5.25mm of top layer and 3/4" thick. I spoke to the Sheoga rep and he recommended two options for my situation (below is his email):
You can use a 1 step product (glue & moisture barrier) or a separate glue and moisture barrier. I would suggest GreenForce as a 1 step product, or MVP4/Best as the 2 step products. There is more labor involved in the 2 step process, but it’s much easier to get the 100% coverage/transfer needed to get the moisture protection needed. I have attached the data sheets for the products mentioned. Both these options offer protection from an unlimited amount of moisture vapor.
You can use a 1 step product (glue & moisture barrier) or a separate glue and moisture barrier. I would suggest GreenForce as a 1 step product, or MVP4/Best as the 2 step products. There is more labor involved in the 2 step process, but it’s much easier to get the 100% coverage/transfer needed to get the moisture protection needed. I have attached the data sheets for the products mentioned. Both these options offer protection from an unlimited amount of moisture vapor.