Magento estimation quote for bigger project

this project is for have a prequote and i will award it to someone who help me and will be considered as first option to do the project What i need 1. verified samples of magento works and some way to prove it (not just a link) 2. i would like to show the samples to my customer as mine just for get my customer trust I am looking expertise in create magento store but should be synced with custom erp. just bid and write something related to my job description please , do not send your copy paste intro.. iwill not consider it if you dont read details. This job is only for get magento samples and a fast consultation to get the estimation price for the project. Prjoect should start in 2 weeks and then full documentation will be given.