I only do bricks in the middle of the season and the 2 months before I start racing - so you're right in there.

I like the idea of your "easy brick". I also throw in a really short brick some other day of the week that could take place of your intervals or you could tack onto a harder bike workout. Your bricks don't have to be long, 15 to 20 min will do it for the run. So you could just add a hard tempo run after a harder bike ride and that would work well for your intensity brick. That might not work for you if you're already running intervals on your hard bike day. You could still do it but I'd shorten up the run before hand and definitely keep the run after to 15 min.

Or you could do short bricks on your Thur reco day. Ride 10 min, run 5 and go through that 3 times. Don't worry about intensity, just getting the muscel transition to happen easily.

The more years of racing you have behind you the less important the bricks become. They are meant to teach your muscles to switch quickly and efficiently from cycling motion to running motion. Once you're good at that, you should still do the occasional brick to sharpen you before the season starts but once racing season starts... you'll be doing bricks in your races.