"I assume that these will require some assembly, but will it be possible to use any of the buildings without the bases?"
ANSWER 1 - There are a couple that will need assembly - the stable roof being a separate component, but in the main they will be one piece resin castings.
ANSWER 2 - They have been designed with integral bases, but it would not take much to remove the bases or request that they are cast without bases. I will check with Rob it this can be done.
Tony