Hi there,
What a great site you have! I just looked at your site, and love the concept.
I am a professional web developer, and will be able to create the functionality you have requested. When I take a project on I commit to it fully. So for example if I see anything else while I'm working on the project that I think might be worth mentioning, I will do that.
For instance, your menu header would be much better placed, as part of the white sticky header where your logo is, it would be more visible then: [login to view URL]
I could do that for you as part of this work.
When I have completed the work, your participants will be able to edit their listings. Also I will add that matched button to your listing. I will also investigate the e-mail masking for you, and see if we can find a good solution. I'm not sure how feasible this will be to implement in WordPress, but I will investigate and work hard to provide a solution, on the email front, and If we implement that, then the final milestone can be paid (I've split it into a separate milestone)
Please check my profile to read about what my previous clients think of my work, I work hard to deliver excellent projects, and this is reflected in my reviews.
Best wishes
Gary