Hi Hudson.
As indicated, you have several choices. My first choice would be to head south from Cache Ck. on Hwy. 1 to Spences Bridge, Hwy 8 to Merritt, Hwy 5A/97C the Coquihalla connector, to W. Kelowna then 97 to Winfield.
If time is an issue. Hwy 1 to east of Kamloops, then 97 through Vernon...