Newbie. Parts wanted.

Hello I am a newbie here, I must admit I am building a trials Bantam not a racer but I will be looking here for info and maybe parts. I am currently looking for a std type centre plug cyl head for a D14b and a D7 r/h c/case cover to use as I intend to use elec ignition so can use the old style case, also if anyone has one I am looking for a rear hub the std type not full width. Thanks.