Bulk SMS - SMPP Connections

Hello i already have a bulk sms website in php that connect to a sms gateway using a http api we need someone to create an smpp connection between our php website and our sms gateway so we replace our http api connection with this smpp what we need to do via smpp is send bulk sms and also receive delivery reports. we will need a step by step development of this prohject, so we can also watch and learn from every step the developer will do so we learn from this. whatever the developer do we need to be there to watch it and to learn from it so we are 100% aware of what going on and so we are able to apply this developemnt by our own to other websites in the future. bids around 100usd and 5days are seriously considered thank you in advance