Somebody school me on coasters ...

[SH101]

I`m going to build a mid school flatland bike , I want to put a freecoaster on it but I`ve never had one before . What hubs are out there / do I need ? What are the chances of a 48h freecoaster hub ? With a 10mm / 3/8 axle ? Do they have 16t cogs ?
Any help appreciated ! 

[turbomax]

99 percent use a freecoaster do you mean you want a coaster brake set up?

[VOIVOD]

  They are all a pain in the arse:) Not a lot of choice on 48h/10mm ones these days.Try one of the midschool groups/FB pages.KHE Bikes have an E-bay shop and have 48h/10mm Nankai freecoasters now and then...