Because the release of Yes on vinyl will be limited to 1000 copies, the chances of getting a copy when it is released are going to be very slim as it is likely they will all be bought up by dealers to cover customer pre-orders.
What Records has set up a pre-order page for the vinyl release so that all those here who want a copy can get hold of one.
You can reserve a copy with a £2.00 deposit on the What Records website. The £2.00 will come off the eventual price of the album itself when it is available. The deposit will be returned to anyone should they want to cancel the order at any point.
The pre-order page is here:
http://www.whatrecords.co.uk/items/55813.htm (NOW SOLD OUT)
I obviously don't wish to force anyone to use this company, but as there is no-one else at the moment who even knows of the release, let alone has means of reserving a copy and the tiny run of 1000 copies means I would act now to ensure you do get the album.
*edit* Please note that this item is now SOLD OUT. Please e-mail What Records through the link on their website if you have any questions.