Can definitely help you out Long.. Any indications as to why it seized? Were you out of oil? (Just wondering if the crank may have been damaged hopefully not) Have you stripped it down yet?
As far as other bits and pieces. Can help you with new pipes, body work, RS bits and pieces ( carbs, forks, etc ), sticker kits. First things first though email me direct at bryan_au@hotmail.com and we can organise to get together and have a look at your engine.