Dear Sir, i'm working on OpenERP since starting of my IT career, it was started in OpenERP's development center, i worked there for 2 years after that worked for OpenERP partners, and now its been 5+ years of experience, it have worked in version 4,2, 5, 6.0, 6,1 and as of now actively working on 7.0 and 8.0, i read your requirements, and i can do the conversion of reports to odoo8, and i would like to take a look at the existing module.
Regards
Zahir