First, as you drive down Jutland the numbers go up on the right and down on the left. So if you drive past Lush and feel like you've missed it, you haven't. Just go a bit further.
This place is kind of the best. It looks like nothing from the outside, but inside is a treasure trove of everything Thai you can't find at T&T, or even the biggest Loblaws, or poking about in Chinatown East, or anywhere else you may have tried. Specifically: yes, Mae Ploy curry pastes including Panang and Massaman. Yes, Thai tea. Assorted health and beauty items, yes, woven cones for steaming sweet Thai rice, yes, &c. It's a gold mine for the home cook.
Don't be shy going in, they're clearly used to random shoppers and even have a little shelf for grocerying. Someone will find you a box for your purchases and take your money (CASH ONLY). 1000g tubs of curry paste are $5, Mae Ploy (aka the best) coconut milk is $2.50, a bag of Panthai Thai tea leaves is $4. Experience of bearing home your treasures and displaying them to your envious friends while casually saying you knew a guy who knew about a warehouse? Priceless.