premium LLL.ca like that usually go for mid to upper xxx at the weekly TBR's, even low x,xxx.
The most I've seen for an LLL.ca was I think about $20,000 for GMX.ca, which was bought by the global mail exchange company gmx.com
Hard to say what your domain is worth to the buyer, but I'd let them make the first offer, or else give them a price higher than you think you'd get.
Also depends on what your plans for the domain are, do you need to make a sale, etc.