Ha! Bortle 3 is definitely Yabba Dabba doo! The darkest I've shot from is Bortle 4.
Andromeda from Malden will take some practice. You should have a ton of fun when Orion comes out earlier in late fall/early winter. The 135mm lens is perfect for from everything in that region.
I've used my 135mm lens to catch Andromeda from my backyard a few years ago. I don't have that image uploaded to AstroBin but I have this one here taken from my backyard:
https://www.astrobin.com/gsroo6/That's with an astro-cam but I can get a pretty decent shot with a DSLR (canon T2i).
You can see my first shot of Andromeda with the 135mm lens and then my next try in this video:
https://www.youtube.com/watch?v=trq6DkHueZc - I show all of my processing steps in that video. The second shot was with the same camera (Canon T2i) and my AT60ED refractor shot at f/4.8.
There's an astronomy club based out in Westford (ATMoB). There's a field you can use and it's in a bortle 5 zone. Probably a ~30 minute drive from where you are. If you want a darker area close by to image from, check out the club. Tons of knowledgeable members and a 25" telescope that will blow your mind.
Clear skies!