Hi, the white ones were 1995 models (and also seem to be a lot of people's favourite Kona ever, so they get good money when they come up).
Have you seen the 1994 one on eBay at the moment (not mine)? Here: http://www.ebay.co.uk/itm/retro-mtb-kon ... 2ecc54fcf4
It's the right size, and I think...