You need a different type of wm or dw for mounting on top of each other. You cannot do that with a regular machine. Both of the machines produce a lot of vibration. Please enquire with the manufacturer before deciding to do that. My opinion is not to have a wash basin in the dining room. Can you do something like a powder room near the dining area?

Hello Abinash, Correct me if I am wrong in my guess that you liked the basin so much that this entire unit was build around it :) that too in the centre of the room. Jokes apart, the base cabinet doesn't provide a few inches gaps to the user for keeping the foot comfortably while using a hand wash. Have you considered the water proofing and maintenance of this unit as what it appears it is wood with laminated top as of now. Do you have a floor plan, as it is a surprising positioning of a hand wash. Thanks, Nitin CORNERSTONE DESIGNS Bangalore

Price is not a function of design. It depends on the finish n material. You should specify what your budget for a stone top dining table set is.

Veneer with White PU is a great Option. Alternatively you can go with Duco which is slightly cheaper than PU. Laminates always have a sharp edge unless done with the right expertise. Fabrics, if going with white, should be scotch-guarded. Mostly, white PU will work on table tops too, but if you want to use a sturdy option, go for white lacquered glass or White marble.