Reliability MTTF calculation for electronic component and circuit topologies

Dear guys, I need someone who can teach me how to calculate the reliability MTTF based on Markvoc chain theory or any other reliability theories are accepted for power converter. I found there are some papers for using the existing Markvoc theory in single-loop or cascaded form. I will attach you the papers and other useful document for further understanding. My target is to calculate some of the basic dc-dc converters or any other parallel unit form converters and plot the graph Reliability versus MTTF to show the different reliability performances. (Note: this analysis requires (power losses, thermal consideration or other probablity theory) and combine these concept to get the correct results I only select the freelancer who can do this task. Thanks. The milestone can only be created, when I think you are capable to solve this problem through discussion and progress during the works. please drop me a message for further discussion.