Hello,
I have 8+ years of extensive experience in Web technologies & am proficient in both developing web services using SOAP or integrating the existing web services to be used with existing applications (your scenario).
I have read the task dexcription and also gone through the web service API doc & I should be able to assist you with this specified task of yours in a swift and efficient manner. We can connect over Skype and discuss it further. Please do let me know in case you would like me to assist you.
Timeframe: I expect to be finished it within 10 days max, provided we have clear specs in hand.
I am looking forward to hear back from you.
Thanks and Regards,
Abhinit