Minor tweaks, fixes on 2-3 Wordpress websites

I run several wordpress websites, and there are a couple of tweaks and fixes (in design mostly) that I need done. The available budget is really shoestring, thus hope to come to an agreement with someone who's interested. More details below: - need to add a few lines of code to themes (similar on sites) - need to add/edit some lines of code in plugins (similar on sites) - can't give access to admin panels for security reasons, will explain-show, and expect a solution Thanks