Hey Rick!!
This is from a fly fishing web site and it's a ways South of you but I was wondering if sounds accurate? Maybe we could fit some of the info into planning for the summer SxS trip. Please let us know what you think.
I know the Kamloops area lake country. Based on what you stated, I think staying at a motel or hotel in Kamloops and then driving to the different lakes would be an efficient option. Think of Kamloops rather like the hub of a wheel and surrounding lakes around it as making up the wheel around it. You have loads of nearby options. I'd rent a truck and use it to get around. The local fly shops are very helpful if you are willing to loosen their lips by spending a little money.
I have stayed at Thuya Lakes and it is very, very rustic. But the surrounding lakes can be very productive. Some are super small and isolated -- some monster size trout lurk in them.
Has anyone noticed that the UAW, Teamsters and dock works are on strike (and probably others).