Check out Snap-on. They have some of the tools. You can also get genuine VW tools by calling Equipment Solutions at 1-800-892-9650. This is where the dealers get their tools. They're a lot cheaper than you might think, plus they have every tool mentioned in the Bentley. I know there are a lot of other places that sell them, I just can't think of who they are right now. While the 1.5 pistons may not be manufactured any more, it's not hard to find all four pistons for around $100.
As far as your cold starts, you could install a block heater, or a coolant heater. Good luck.