The only ones made for the Valkyrie are Corbins (they are pretty expensive) and ones from Honda (cheaper than Corbin, but still expensive). Anything else and you will have to create mounting brackets for it.
Thanks for the info. thought there may be more options or someone that didn't want the oem bags they had bought. I don't need a bagger just need to carry some stuff. I will check into putting something together. Thanks again