*8911* improve validation for expedited submission process

I don't think the reader front end takes the salesType field into consideration, just the direct sales price. I'm OK with keeping the salesType and other ONIX fields ONIX-specific and leaving the direct sales price for OMP itself -- that way we can support users who want to market via ONIX but not via OMP. If we tie it all together -- as goes ONIX, so will go OMP.