I think the slightly smaller scaled figures (not saying they're inaccurate by any means) are FL, WB and Xuan Hua, and none of them are anywhere close to 1/35. WP figures are very, very close in scale to these brands and are perhaps just a bit thicker. What WP figure do you have that is like 1/35?
Here's a picture of a WP tanker flanked by Xuan Hua pieces whose figures are scaled very much like FL and WB.
WP, won't be a good match in scale for K & C whose figures are much more robust with larger heads, weapons, hands, etc but are good w/ FL, WB, and XH.