Hi there!
Please I am an ODK expert. I build all sort of forms ranging from complex household questionnaires to simple designed forms for data collection. I build and host questionnaires on servers not limited to ONA, SurveyCTO, KoboCollect among others. Although you want your work on ONA, I can host your work for you for free on SurveyCTO as I have a premium server running currently. You know SurveyCTO comes with much more sophisticated interface that every respondent would love.
Please check my portfolio to see samples of work I have done that are similar to what you are offering. I look forward to an interview opportunity with you. Thank you very much.
Regards,
Fadl.