Aren't the newer Mavers made on the same mandrels? I know they don't change them every year (although the K series was a while back, so things may be different). have you asked Maver whether kits for other models will fit? Also worth trying "universal" kits from Daiwa, Fox, Preston, etc. They all do them.
just joined forum and noticed you were after K57 kits. have a complete pole with spare top 5, top 4 and 3top kits for sale. few repaired sections.yours for less than the price of a top 5 kit!if interested drop me a line at