Guide Star guide telescope mount never used.
Guide Star 13 inch mount with two mounting blocks to fit a Losmandy Plate.
The costs are as follows:
13” Guide Star $250
Mounting Blocks pair $60.
13” Losmandy Plate $55.
The total package new cost $375
My price including UPS in USA $300.
I will consider the Losmandy plate separately, but the Guide Star mount and blocks go together.
This system allows you to select a good guide star easily and precisely.