Sir,Present market is full of choices. Basic load frame material is aluminium, then the modular trolleys, then comes the shutter material.

You should select a better gauge aluminium pipe for the structure.

For the modular trolleys, must go for stainless steel material as it is more durable.

Then comes the front panels, for that go for waterproof plywood and good quality 1 mm thick laminate which is durable.

Hardware like channels and hinges should be of hefele, hettich , or inox brand for durability.

If you are going for the ready made ones, go for hafele modular kitchens as they are the best.