RO4003C vs RO3035 laminate

Hello everyone,
I've just finished the design of my circuit and it's time to design the pcb. I did a little research and i found that both the rogers4003C and the rogers3035 laminate do the work for my design.My question is which one is easiest to find in the market and what about the prices.
Thanks in advance.

Talk to your local PCB manufacturer. They should have a good idea as to availbality and cost. there are other laminates that would work if there is a problem with Rogers. Try lookiing at Arlon, Isola and Taconic if you have problems getting Rogers and ask your board house about local costs and availability as this will depend on your production volumes. All of them make competing products at around dk 3.5.
I tend to use RO4350 as I need the V-0 flamability.
I'd be wary of swapping once you have the design working