Final outcome of my Bulbophyllum newbie query, which could also go under the "Vendor Feedback" forum: nothing but praise for the folks at Olympic Orchids.
After e-mailing me that the B. Kalimpong I ordered was out of stock, they offered me divisions of B. sikkimensis, puditim, and biflorum, all for the same price I paid for the single Kalimpong. Now
that's good customer service - and my new Bulbo adventure will shortly be off to a speedy (if rather frightening) start with not one, but three species.