I mentioned the EG33 swap more as an afterthought and not too seriously, lol. It has been done plenty of times in second gen legacies. But even the EG33 swap is best done with a head gasket replacement at the very least. It's a lot of work and you need to know how to weld. Check out joelwatt's thread: http://legacygt.com/forums/showthrea...ld-184928.html
It's good you are thinking about a swap. I think about one all the time and it is one of my long term goals. The most practical decision is to get your car back on the road and gain some more skills before you attempt a swap.