Conversion and updating of websites from Asp.Net hosting to Wordpress / Linux based hosting

We have a few existing websites that were designed a decade ago when asp.net hosting in windows environment was popular. But now the time has come for us to convert them from Windows based hosting to Wordpress hosting or similar, with more economic options. We want to completely redesign these websites for the Wordpress environment.

What we need is to make a copy of our existing websites, and upgrade where necessary, for Wordpress hosting. Everything that works on our existing website must also work on the newly designed Wordpress based website. But further improvement could be appreciated as well.

If you are interested and like to quote giving out your capabilities, credentials and portfolios, then it will be easier for me to pick one or may be two of you. Once I have selected the developer(s), the links to the existing sites will be given for you to examine and discuss or get started.

Based on the design of the sites and skills and competence shown, other projects may be awarded.
Thanks.

P.S.: Please ignore the budget shown (I do not have much choice to modify it). I am looking for a quotation from you.