Björn Thomasson is a Swedish designer of some really great strip-built kayaks. I've built three of his Black Pearls and am building two Njords this winter/spring. In January he launched two new lines of boats specifically for paddlers in the size-range you're looking at. He's scaled down two of his models the KAVAT and the ISFJORD to MINI and MICRO sizes with capacities of 70 and 50 kg (154 and 110 pounds) respectively. The ISFJORD is very British looking Greenlander while the KAVAT is of the traditional Scandinavian style.

He hasn't translated the new page to English yet but you'll get the gist of the models if you follow the links for the full-sized models. His pages are all in Metric units as well. Any questions let him know. He's very knowledgeable and will get back to you quickly.

Hope it helps,
Dan