I paid $14K for my 2001 Boxster S @ 2 years ago.
New short block engine, 140,000 kms, new top, new tires and a bunch of engine maintenance related stuff done. (AOS, coils, etc, etc.)
Not many are currently listed on Kijiji as of late, if they are I'd avoid them as they've been on there a long while - if you catch my drift.
Welcome to a fellow Canuck!