Are you using as DIP adapters, or incorporating into a larger board?
I bought a sheet of smaller SMD (3,4,6,8,10 pin) to DIP apapters from a place in Thailand.
Was thinking of making a sheet myself of larger parts - 16, 20, 24, 28, 32,44.
Place in Natick, MA will do 10" x 10" sheets for $95 each.
Course eagle light only permits 80mx10mm boards, so would need them to duplicate the designto fill the space.
dipmicro has adapters , have picked up qty 2-3 indifferent sizes every once in while for 40,50,75 cents each kind of price when I was ordering other stuff.