Hi, let me introduce myself to you. My name is Pan Nata, a Process Engineer, chemical engineering background, with 10 years solid working experience in EPC contractor/consultant for oil, gas, power plant and other industrial sector.
I have done many Heat Exchanger design mostly based on TEMA. I believe my qualifications will meet your requirements.
About cost and time we can negotiate it again.
Rgds,
-Pan Nata-