If you are in Nevada then the closest major supplier is Freestyle
https://www.freestylephoto.com/ - they have been in business forever and supply a nice range of house brand chemicals, paper and film. The other names haven't changed over the years: B&H Photo and Adorama in New York City are still the staples.
I recommend getting top shelf film from Kodak or Ilford - film is probably the least of one's expense in B&W photography. Stack the odds in your favor. If you mung making a print in the darkroom you can always try again. Not so when shooting film, usually one time is all you get. Cheap film is fine for getting your feet wet - learning if the camera works, the exposure meter is accurate, how to load the developing tank and processing in general; not so much for serious work.
If you are getting started after a long hiatus I recommend printing on the cheapest paper you can find - much of B&W darkroom work seems to involve turning photographic paper into waste paper. If you find you have a really good image then you can splurge on a pack of Ilford fine art paper.
I find chemistry is all about the same and there isn't much point in getting the 'name brand' stuff; I mix my own from raw chemicals except for the esoteric items.
For graduates, trays and such ebay is probably the best bet. Graduates and scales are available in the scientific and industrial supply sections.
If you need a timer then I can shameless promote f-Stop units. They are available from RH Designs in the UK and Darkroom Automation (that's me) in the US. They show up on ebay only rarely, but if you are willing to hold out and have ebay send you an alert email when one does pop up for sale you can save some money, though not as much as you might hope. In the mean time you can find f-stop timing tables and dials in the Darkroom Automation support files and in the reprint of the f-Stop timing chapter of Ralph Lambrecht's very fine book "Beyond Monochrome." The book is worth picking up - possibly the best thing out there. Available on Amazon, natch.
