VirtueMart and Joomla plugin

Looking for an experienced person to write a plugin for VirtueMart We have product that is rented by the hour to our clients 1,2,3h or whole day we need also to schedule rental date and time at the same time of purchase. we also have tours offered on specific time and we need customers to be able to choose date and hour for this as well We are very close to a fully operational site. A quick turn aro