Accounting software development

My client wants an accounting software developing for them. they intend to sell this software to the market and also to launch in the entire western hemisphere. these softwares are all desktop application, categorized into 10 forms. a typical example is sage accounting package. i will not be able to disclose the name and functionality until this job is awarded the winning bidder. but in other to have an idea of the kind of job involve please view this link <[login to view URL]> as a typical example. i will require 5% expert guarantee. Milestone payment terms will be made weekly or monthly depending on what the winning bidder prefers. so please before you bid, is better you ask me any question that you have in mind so we will not have any problems. Delivery time of the project is 6 months.