Installed Coretec for a customer, it was the first and last time I will work with this product. the locking mechanism was in adequate and difficult to work with, unlike laminate I have worked with in the past which snapped together and was difficult to separate Coretec did not clearly make that connection. Even when joints were visibly tight the material was still not well connected. Flooring America, who sold the material to my customer told me as the installer that we could go over tile with no prep or underlayment, that we didn't need acclimate to the material and said it should be easy to install. I read the instructions and watched the manufacturers instructional video and followed the procedures per those instructions. 4 months after installation gaps started showing up. Contacted Flooring America and the manufacturer. They proceeded to blame it first on humidity issues (after telling us no acclimation was needed) and then came back out and blamed it on out of level floors. we installed 3/4" plywood over the existing subfloor to flush up with the tile they said we could go over (which we did a floor prep to fill all the grout joints and low spots). I can't think of a 30 year old house that isn't going to be 3/16" out of level in 10 feet, but that doesn't mean the floor isn't flat. Needless to say, after following all the advice and instructions of the "experts" the manufacturer pushed the problems onto the installer. I would not recommend any material that can't be installed over common anomalies in the average house.

Nice to see someone keeping their stained trim. I had natural wood trim in most of my last home. How dark do you want your floors? I often see floors a shade lighter than the trim. I think in your case that would be more flexible. But, that sample does have your wood tone in it as the lighter shade.

At one point, I was considering CoreTec, as well. I had a local mom-and-pop flooring shop come out to my house, measure every room, and discuss what I wanted out of my floors. The sales rep (the son of the owners) flat out told me that, given my situation, he would NOT recommend LVP. He said that dark LVP (I gotta have dark floors, lol; I just love them) + lots of sunshine (my main living areas all face south, with considerable eastern light as well) + tons of kids + 160 pound dog = very unhappy Me. He assured me that I would see every single scratch, every single day, and that it would bug me to high Heaven. He's right. He recommended wood look tile for my slab-on-grade house. I expressed skepticism, remarking that, "I'm not sure you'll be able to get the grout lines small enough for me, without voiding the warranty on the tile...." And he proceeded to show me photos on his phone of itty bitty grout lines on a wood look tile. Not that I'm necessarily saying you should go with tile, but know the non-cleaning downsides to dark LVP. :-)

You aren't crazy. Do it. COREtec is a great brand, and an 8MM thick LVP with a 20 mil wear layer is plenty beefy. You won't regret it.