No not really, zhome.com has some good info, but not too many articles dealing with how to's. The bov, take your j-pipe off, weld on a flange for the bov that you want to use and then find a vacuum line from the intake manifold and plumb it to the bov. Take a look around on cardomain.com at the different 280zx's there, some people have pics of their bov's and stuff. Should help you out.
The stock turbo is a T3 Garret, .63 A/R, non-watercooled unit.
John 82ZXT

 

Depends on how much hp you want to push. Most people start off with the 370cc's from an SVO Mustang 4cyl. Supra turbo injectors are known to work, but you have to have either stand alone, or a reprogrammed ecu, or figure a way to use a piggyback fuel controller. Don't forget the pump! Walbro pumps were recommended to me by a few Z guys. Fuel rails, there are a few on ebay that are sold, I think the guy that sells them can adapt the fittings to fit the Mustang injectors without mods... It'd be best to try to get ahold of him though. JSK innovations is his company.
John 82ZXT

 

RC engineering has injectors for about any application you can think of. I don't know their site's address, but a quick search in google should find it.
John 82ZXT