Suniti, Usually you do not get the right prices for any discards from construction site. It is sold at scrap prices. However , you may try at olx, quikr etc. with the measurements and pics. All the best. Nitin CORNERSTONE DESIGNS, Bangalore.

Rajkumar, There are a lot of materials available but IMHO the BWP ply as the core material is best suited for Kitchen. Laminates, Glass, Acrylic are the top 3 picks for finishes for above parameters. Get trusted hardware Hettich/Hafelle/Blum/Ebco are few of the good ones. Chimney, width and suction power two most important criteria. Added features like oil collection are a good option. It depends upon you cooking style, kitchen dimensions and ventilation. Thanks, Nitin, Cornerstone Designs, Bangalore.

you can transition, that's absolutely fine. if the kitchen is enclosed with an archway, it will take some of the awkwardness away for you. additionally, you can add a floor separator strip, or transition with designs on the floor. these will all work great for you

Which city you are looking for services. Products are decent.