23mm seatpost?

Hi,

I am currently building up my first fixed gear bike and am using an old Malvern Star frame. The inside diameter of the seat tube is 23mm. I am having trouble finding anywhere that has anything similar that might fit, any ideas on where i could get my hands on one and if so how much?

Cheers.

Fifty bucks!

look for old bmx shit dude, i think haro made some in 23