Now that Mrs W and I have a Russell Day Long seat, I have a standard seat (front and rear) for the ST1300 that I'm not using, but it's not for sale.
It is however available for a loan, if that's what's needed until you can get yourself a seat permanently. Not sure where you are located bear122, but postage and handling (both ways from St Helena 3088) may make it uneconomical for a loan, or I'm not sure if a ride is out of the question. Either way, let me know.
Offer available to others also, on a first-in-best-dressed basis.