As above to finish a build.
Need an inline 30.0mm seatpost, 350 to 400mm long.
Chain guide - just the top part is fine. Something like a Superstar or MRP or E13 would be fine. BB mount required. White preferred.
Shimano 180mm disc brake adapter. Post to Post and must include the special lower bolt (I have the others already). Or just that special lower bolt on it's own would do!