Hi I would suggest that you search for similar items that have already sold on e-bay. This will give you an idea of what buyers are prepared to pay. if in your opinion that is not enough there are other avenues you migh explore.
With regard to P&P. I wrap each item individually. In the case of saucers, plates etc. once wrapped individually wrap them together with plenty of padding around them. Cups are a bit more awkward pad each one before boxing making sure that they cannot bang together in transit. Don't forget to pad above and below them bfore using a sturdy box or even consider double boxing i.e. pack your items in a box then pad it and put it in another box.
Hope this info is usefull to you
Regards Nicholas
