Dude, sweet!! Tell me more about your axxess! Mine's a 2wd 5-speed xe. Yes, parts are very cheap and available for this motor. The front end drivetrain is basically a stanza of similar year. How mechanically inclined are you? First thing you should do is pull the valve cover. Look down the left side inside, if you see black plastic chunks, start really considering; your mechanical capabilities, your buget, how much you like the van and it's general condition, because you're kinda sol.
As far as parts, valvetrain is the same as any ka24e (89-94... 240sx, truck, stanza). And all your accessories are free due to a dealer recall, so that means you don't have to buy alternators etc. Go to autotrader.com, click used car research, click in axxess, click safety, read recalls, become ecstatic.
Tell me more about your van
Wanna make it faster? Or just make it run?
Please see the other post I made under "Why an axxess?"