What kind of a "damn the torpedos, full steam ahead" attitude is THAT?
A Subaru is, basically, a water-boxer. In other words, it is a water cooled, horizontally opposed, 2 litre VW/Boxer engine that just happens to be licensed from VW and manufactured by Subaru. It is, basically, the same as a type 4, with water jacketed cylinders and no fan housing (making it a lower profile, like a type 3, but basically the same front-to-back length and overall weight).
All you really need to do is fab up a set of hangers for the radiator and cooling hoses, and get an adapter plate for the engine-to-transmission interface (which exists from several sources or you can easily make one from 3/8" steel plate) and put it all together. OK, so it may be a TAD more complicated than that, but I can't imagine a whole lot standing in the way. You sure as heck don't need anything more than a "normal" late 60's VW pan to hold it all together unless you put a WRX turbo-rocket engine in there.
The advantage to the SAW approach is solving the same problem that Porsche was toying with when they built the 550 Spyder - improving weight distribution to make it handle flatter. Both Porsche and SAW solved the problem with a mid-engine design (which was actually easier for SAW, since they took an entire Subaru front end - includng transmission and drive axles - and mounted it all in the REAR like a Fiero. This is not to say that the rear-engine design is BAD, just not as neutral-handling as a middy (DUH!).
The REAL advantage to going with Subaru, is (beyond the obvious improved engine cooling and cockpit heating) similar engine charistics to the original VW engine (the crank even turns in the same direction), but with a much improved induction system (with electronic fuel injection for starters) and the potential for GREATLY improved horsepower/performance, right out of the box. The Subaru designers have also beefed up the engine case a la the Type 4, so it's much stronger than what we're used to with a type 1 case. Hell, just dropping in an engine from a Forester would give you over 130 hp and you haven't even thought about turbo charging yet! This sounds like a VERY easy conversion for a Speedster, and might make a lot of sense.
I'm glad that there are still guys out there willing to try shoe-horning a Buick 389 V8 into an Austin Healey 3000 like I did in the late 60's, or all those guys on a web site listed above that have put all manner of foreign engines into VW Old-Beetle sedans just to see what would happen. Sure, Carrol Shelby had MASSIVE axle-hop with his first AC-based Cobras, but he solved it, AND his understeer problems, too, to produce one hell of a great road racing car. Maybe someone will do the same with a rear-engined suby-tub (OK, so it'll NEVER be a hell-of-a-great road racer, but if it were as good handling as what we have now, we've gained more power and reliability, right?)
Dos centavos de los "Speedah Guys" desde Rhode Island