Assembling a 1932-1998 Washington quarter set from "junk" silver and bank rolls

This is my latest casual sideline. I've got a Washington quarter album for the eagle-reverse type (1932-1998, no proofs). The plan is to fill as many of the silver slots as possible by going through dealer "junk" silver assortments, to get 'em at spot or thereabouts. The clads I will fill by going through coin rolls from the bank.

I know I will have to buy the 1932-D and 1932-S, but aside from those, do you foresee any difficulties for me in doing the rest of the silver ones at or near spot? I've never collected this series.

For that matter, are there any clads that will be tough to find by coin roll hunting? @cladking - what pointers do you have for me?

If nothing else, it will give me something relatively affordable to look for at the FUN show in January, since I will be on a much more restricted budget this year.

I did a swap with @Randy Abercrombie, who let me have 53 different dates and mints of silvers out of his safe deposit stash (at well below spot, I should add!), so there's a healthy start to the project.