The first test in deciding whether or not you are ready for technical diving goes as follows: 1. Walk into bathroom. 2. Open wallet. 3. Fetch largest bill. 4. Drop in toilet. 5. Flush and repeat steps 1-4. If you can handle this without cringing, you are ready for tech diving
I think you'll like your 130's. They are great tanks, trim out very well, and you'll have oodles of gas. While you are getting used to the equipment you will be able to get two recreational dives on them so no need for multiple sets on the boat and not switching tanks between dives. They are heavy but you'll get used to them.
As for the BP/wing, I have no problem w/ the quality or function of Halcyon gear but it is just way overpriced for my tastes. I'm not going to shell out the cash for an "H" on my gear when I can get just as good if not better gear from Agir, DSS, Oxycheq, etc., etc.
You will be happy with Bare. I dive a DUI myself, but dive with some folks who own Bares and they love them.
Take the time you need to gather gear to work on your skills. You don't need to be in a technical environment to work on the skills that you need to be successful in a technical environemnt. Bouyancy and trim needs to be spot on. Ascents and descents need to be very controlled, especially your ascent through shallow water (30 to 20, 20 to 10). Good buddy and environment awareness, communication, and the ability to plan a dive and execute that plan. All this stuff can be practiced on any dive and so take advantage of the time you have before now and the start of your training.
Find a good mentor! It is good to have a sounding board while you are working through issues and you won't have the pressure to perform that might have with an instructor. Just make sure you find someone who is doing the kind of dives that you want to be doing.
Good luck w/ your transition and congrats on the decision. As with many other things in life, it's all about the journey and not just the destination.