With an f10 SCT you don't necessarily need to fork out for the premium glass. I used to have a Panaview 38mm as my wide/finder. I loved the comfortable "facecup" and easy viewing, and in an f10 10" SCT the views were pretty good.
I upgraded to an Axiom LX 31mm, which was immense and beautiful, but I never quite gelled with in the same way.
I currently have a Max vision 34/68, which is also good (but I still miss the big front lens of the Panaview), and a cheap 42/68ish, which doesn't get used for long - it really doesn't make the view that much wider.