No need to worry, Cisco. Personally, I have been to Eindhoven early in the morning many times.
In general all shops open between 10-12.
I know for sure that The Grasshopper opens at 10:00 AM. New Wave at 11:00 AM. The Indian opens at 09:00 AM from Monday to Saturday.
The Wall changed their opening times recently - before that they opened at 08:00 AM, now from 10:00 AM I think.
I guess The Pink opens at 10:00, too.
Have fun in Eindhoven(and perhaps Tilburg

) and Amsterdam! Good luck for your Scale Model Challenge!