Got a Hull Id Number from the registration? If not, how about some pictures of the bow and stern out of the water? We could probably get it within a range of dates with pics...
There's a decent-looking 170 donation boat on eBay going cheap if you want to downsize and keep an Aquasport fleet:http://cgi.ebay.com/ebaymotors/1979-Aqu ... enameZWDVW See ya on the water!