Hi Sir,
We are a team of 4 members having 4+ years of experience in magento and wordpress customization, hope we will get this job done in timely manner with 100% Quality.
Since we have extension to upload configurable products we will get this job done soon. Otherwise we will let you know how to add configurable products, so you can do it ourselves
We like to charge $10 to teach you with several products.
Though we are new to freeelance, we have enough experience in handling high level customization and product import, since we deal with different magento requirements in our day to day activities.
Since we are looking for long term business, we are ready to do this work as sample to prove ourselves.
Thanks,
Naren