Great looking build!
Your tube bends are quite crisp, something I spent HOURS on in my recent build.
I just wanted to chime in on your comment about Hardline having a steep learning curve. I would have to agree, but I found a couple REALLY invaluable tricks I've not really seen on the net when it comes to bending hard tube.
1.) You can bend, and bend, and re-bend tube. It's actually quite amazing how malleable Hard Tubing is, it's just really about how carefully you apply the heat.
If you look at my build "Carbon Candy" in the rig gallery, I actually re-bent some of those tube runs over a half dozen times, some times straightening a bend back out completely.
2.) DISH SOAP!
It's amazing how dish soap can be the key with the silicon insert when bending. I would simply wet the inside of the tube, (Not much, think rain drops), and wet the silicon insert. Take a dot, and literally a dot, of dish soap and coat just the end of the silicon insert. Doing this I could literally bend, remove, check, reinsert the silicon and bend again, and this is through 3-4 bends in a single run. I saved so much tube.
Now of course this come with a catch. You can only heat and re-heat acrylic so much before it become brittle if you're not careful how fast you heat it. Think turtle in a race here, slow and steady wins.
In all, I couldn't be happier with the bends I achieved, and only my second time working with Hard Tube, (Both in this build), as the bends are damn near perfect symmetry.