Bronze valve guides for Olds 215 heads?

[vinnygt]

Would anyone know if there is a vendor or manufacture that has production bronze valve guides for Olds 215 heads? Or ones that I can cut down in length? I am unaware if Buick vs Olds valve guides are the same? But still unable to locate "Bronze" for either cylinder head types. I will be using Chevy SB valves, which are the same valve stem diameter as the Olds. I did try to go to the Ford 2.3 valves; but would still have the issue of sourcing for bronze valve guides.  
I have a new set of the iron guides; but rather use bronze alloy types before I rebuild these cylinder heads.
I am not in favor of k-line insert liners, or wish to go to have guides custom made.
Looking into Precision Engine Parts (https://www.precisionengineparts.com); has a few suitable options. But they do not sell wholesale (without account); in which my machinist will not trouble himself doing; especially during this Shelter in Place Law still currently active in my state during this virus pandemic.

Thanks and be safe.

[BlownMGB-V8]

Pretty common practice these days to sleeve the guides.

Jim