Looking at those pictures I think you could make some sort of bracket that comes accross from the top bracket on the battery holder to support the pipe. The cost seems reasonable, I paid around £50 in total for my old setup, which was an Apiro filter, one piece of pipe (short with a slight bend), and a silicone reducer. So for £30 extra you're getting alot more pipe, and by the looks of it I think that's a Green filter?