I've been looking for Lowrance SKU: 000-15954-001, which is just the bag (and I presume plastic frame) and the pole. I'm not so sure I want it now though if it has backpack straps on it. The transducer pole looks really good like the one with the Summit Shuttle...no janky plastic like Garmin.
Don't even bother with a 12" HDS. That's what I ran last year in the Summit Shuttle with an Amped Outdoors 48Ah battery, and it was soooo heavy. In fact, it started tearing the straps off the bag.
I bought a 9" Live at TFH's big sale in August to downsize my Active Target setup, as I found I was taking the LiveScope out more and more as the season wore on. Maybe I'll just get the smaller Summit bag and be done with it. You may have saved me some money...the Lowrance stuff is crazy expensive.