Dev Support to Help Get Mobile App to Launch

We are looking for a developer to assist with getting our mobile delivery app to our pilot phase. Please reply with your best estimate in terms of: time (hrs) and day (days) or week (s) to complete and your estimated budget / cost? Our app is in a good development and early testing phase, we need a good and affordable, and reliable resource to assist with getting this to pilot phase. Scope: a) Update our product order UI to accommodate the order selection process b) Update our order / payment so discounts can applied during the the pilot/test phase c) assist with product photo gathering from online sources so no copyright issues - these will be used in the product section (these products are very common and can found online) d) Published in both app stores e) support with any bugs during testing, etc There will be follow up work available after the pilot and testing phase.