Dear Sir.
I hope you give me this chance to do your project.
I have read your project well and I have done many projects like your project.
I had been working the circuit and PCB design for my clients of Japan and United States during 10+ years.
I have many experiences of the design methods for SRAM, SDRAM, DDR, DDR2, DDR3, DDR4.
And also, the design method varies depending on the quantity of DDR.
Please review my profile and the portfolios.
I will do my best for your project and proffer the special service.
Please let me know the details.
I will wait your reply.
Best regards.