Write some Software

this is the first module, once it is implemented and used then subsequently i will every month get new modules developed for sales, support, quotation, invoicing, payment followup, projects, outsourcing, client portal, telephony integration. looking at the below scope, can you give me a estimate. Contacts Management: Company Master - company name, address, city, state, country, pincode, phone, geocode, remarks, website, no. of employees, no. of assets, turnover Under company, sub information of multiple records... Contacts - person name, designation (auto master), email, mobile, remarks, linkedin profile url, facebook url, twitter id, date of birth Billing done - name, Inv Date, Inv No, service till, amount, remarks Search box Text entered should search in all 3 tables - company / contacts / billing done and show the matching records. Records displayed should show all columns from company, contact, billing done Option to export these records to excel import: Option to Import from excel (all the 3, i.e. company, contacts, billing done) Reports: export to excel, full data, eg. given below... Company1, contact1, billing1 Company1, contact1, billing2 Company1, contact2, billing1 Company1, contact2, billing2 Company2, contact1, billing1