Kara 12" Offset Arm w/ 5/8th Thread Adapter
Offset arm is designed to thread into 5/8th tripods or column clamps and will allow you to set up over a point or move away from a structure.
Combine this with one of Seco's Column Clamps & you will now be able to telescope up or down.
Seco Column Clamp w/ Ratchet Strap Model 4852-16 buy here
Seco Column Clamp w/ Pipe Locking Pipe Thread
Model 4852-18 buy here