responsible for doing a thorough check over the website, tidy up disused files or components, and upgrade software as necessaryDear friend
I am Joomla Developer and had much experience in Joomla Upgrade [ to 1.5 -> 2.5 or 1.5 to 3.2]. Please check my review about this skill if you want to ensure
About your project, I have some questions
+ Your site got hacked. and have virus there.
+ if you have latest template, that is great. I will need you on some additional component if you have :).. I will secure to avoid spam, hack
What I will do
+ Move all contents, menu, modules. users to new Joomla fresh system
+ Create a fresh template with clean code and keep format layout as old site
+ Secure the site
+ Backup and deliver for you ask quickstart package
I am serious developer and interested in doing for you this project I will update you daily for progressing of project.I am happy to reply you by hourly
Best regards
Linh