I am developing a portfolio management system in Excel and wishh to
commercialise it. I know it will depend upon the scope of the project but
ballpark does anyone know how much it will cost to supply an excel
application and have it migrated into a VB application for distribution as
it is not a task I would want to do myself.

Assuming the program flow and code is there, what will it take?

I know this is a very broad question but are there any guidlines anyone
could supply to help assess the cost and time involved?

Kind regards, Mark