TBH there are quite a few 1.1 owners who would gladly 'trade up' to a CDi, given the chance.
How about seeing if anyone is interested, and then you can pick n choose amongst them, or
if nothing takes your fancy, go to a dealer.
However, I would think any dealer with a 1.1 would not be an MB/Smart one....and you may
well not get such a good deal. They will be looking to buy cheap and sell at a profit, so be
prepared to haggle. You should defo be able to get a similar age 1.1 Passion or younger.