Right Barry, the Torquemasters should last about forever, they are pricey, but still about half the cost of, say, the Pulstar plugs (I've tried those too).
There are different ways to make a PCV catch can, I've posted and use 2 different ones, look in the forum Index. The BMW cyclone AOS works great, I just made a small drain can from PVC fittings and some hose. I got the BMW cyclone AOS on ebay, about 30 bucks. Ebay has about a zillion different catch-cans, in different anodized colors, I studied them all then made my own from a metal water bottle. You want something that will actively do separation of vapors/liquids from the PCV crankcase gas stream, and provide a reservoir to hold that liquid. The BMW Cyclone Air-Oil-Separator (AOS) is cool since it's small and will fit under most any hood, you just put a hose on the bottom drain port and connect to some kind of reservoir container underneath. You just cut the PCV-to-manifold vac. hose and connect the hose ends to the nipples on the BMW AOS. It takes less time to understand this while looking at this in person, than to write all this. I'll let others explain the PCV re-route, or just read in Index, it's simple. Yes get some good pics of the PCV and makeup breather hoses, and find the PCV valve.
I'd pull one or two spark plugs, then judge the condition to see if you can get away w/ just re-gapping 'em for now. Can upgrade plugs when $$ allows.
If along w/ these things, you start using MPG Remedy, and do the RVS treatments to engine/trans/drivetrain, you could see substantial gains. Add in tire press, and careful driving habits-- well maybe 5+ MPG's...or more. Believe it and you will do it.
Tracy G