Modify Chromis

I am looking for a developer to modify Chromis (open-source POS found here: [login to view URL]) with the following modifications: - Support for price-encoded barcodes and custom name for them. I have two types as follows: a. 9001132001076 = RX #N1132 as name and amount as $10.76 b. 0003799023084 = RX #3799 as name and amount as $230.84 - For the above, when looking at reports I want the profit on them to be zero (so sold cost = buy cost) - Rounding total when paying cash, but not when paying using debit/credit, to nearest $0.05, examples below: a. $1.01 = $1.00 b. $1.02 = $1.00 c. $1.03 = $1.05 d. $1.04 = $1.05 e. $1.06 = $1.05 f. $1.07 = $1.05 g. $1.08 = $1.10 h. $1.09 = $1.10 - Also to go with above, show a line on the reciept that says "Rounding: -$0.01" for example. This line should be removable manually incase I choose to do debit/credit if customer changes their mind after telling me cash. - Support for cashback feature, where there is no profit on the cashback amount, I should be able to select a price-variable button called "Cashback" which has buy cost = sell cost. This should display a line on reciept called "$20 Casback" if I entered $20 for example. - The product sales profit report should show the amount of tax collected - Setup Chromis to work with my Epson TM20II printer, cashback drawer and 2-line pole display - Simplify the Product Sales Profit screen so that when selecting dates it will assume start time is 12:00 AM and end time is 11:59 PM rather than me having to manually enter a time. Also add a "today" button which sets start date as today's date with start time as 12:00 AM and end time as today's date at 11:59 PM. - Integration with ingenico ict250 terminal to send amount whenever debit/credit is selected as a payment option and also recieve response (print reciept if successful)([login to view URL]) - Open cash drawer only if paid via cash or if a cashback was selected as above I am looking for lowest price, I have a modified version of Chromis with most of the above already but no source code, I can provide that to you to eliminate most of the above if needed but end result must have all of the above. I constantly need more modifications so lowest bidder will get lots of business from me.