Finding 10 year old product is near to impossible as you can get. Ideally the first install would have left a box or two after install (sigh...I know...no one ever thinks about it at the time). Man made floors have a life-span of (roughly) 12-18 months. It's been 120 MONTHS (10 years) since you purchased this. There will be identical match to be had. Since this is a separate room, I would go ahead and find the BEST match and live with it. Don't try to click two different floors together...it won't work. A little T-molding between the two floors is going to be the best you can hope for. The new floor + T-molding = cheaper than FULL replacement of the whole thing. And please don't use laminate in a full bath (powder rooms are on the edge of not allowed...but are possible because there is no shower/bath).

Have you tried calling the manufacturer or the regional representative? They should be able to tell you which stores they have shipped inventory to across the country. I've had success in the past with this method.

As long as the cabinets are at the finished floor height, there is no issue with installing them. All you generally need for a CO is a functioning sink. It could be a cheap acrylic laundry sink hooked up. And a cooktop. In a Habitat surplus cabinet if need be. Roll out some .50 vinyl from the cheapest place in town that caters to rentals. It doesn’t even have to be permanently or properly installed. A couple of carpet tacks. If you need a CO, it can happen pretty quickly while you wait on the real thing.

We are doing a remodel of our kitchen and our counter will have a different footprint. We am looking for a box of the discontinued Kahrs Oak Pineau. We plan to refinish the entire floor when we am done. Is there a suggestion of a different Kahrs product that would work instead and then would match after the refinishing?