online shopping

Hi I have my website developed in wordpress & PHP , its an online shopping site with recharge ,hotel booking, bus & flight booking , there are few modules that needs to added to it. am looking for a developer who have the knowledge of wordpress,PHP & strong in webservices. Modules to be added : 1) Recharge & bill payments 2) hotel, bus & flight booking 3)order confirmation mail & message to customer 4) estimated delivery time & delivery cost with respect to godown pin code to deliver pincode. 5) ADD money : customer can add money to their wallet & that money can be used for any of the purchase (recharge,bill payments, shopping payment, bus,hotel,flight ticket booking etc) 6) webservices -API integration as below example. a customer search a product( shirt) in our wbsite search bar, then search result should come with all the shirt products of amazon , flipkart along with our own shirts get display to the customer, & customer should have the filter options for price ,color size etc .if customer likes any product from amazon he will click on that product & it should retrive to that product on amazon site & do the purchase . else if the customer likes our own website product ,he will add to his cart & do the checkout. Note : 1)do not expect any advance payment . full & final settlement will be done only after the work signoff. 2) once the work is assigned. based on the work satisfaction, i will assign them as the permanent vendor for our technical support.