I would go to a local farm/hardware store and have them order you timothy seed if it's not in stock and see if they can ship it to the store for you for free and pick it up there. My Rural King store does not stock timothy seed, but they have a lot of other hay seeds. It's never on the website though. You have to walk in and ask. They sell the hay, but it's too expensive for me. I purchase orchard grass and fescue hay either locally (craigslist, facebook marketplace) or from the farm store (horse quality). You can get a 50 lb hay bale $4-11 depending on your source. Around here people tend to plant fescue and red clover and alfalfa but we are a really different climate from you, south eastern USA. I don't think timothy thrives in our blistering summers. So your local store may have a better selection for timothy.