I've got a simple django e-commerce website I've developed for a client who runs a surf shop. He currently doesn't use EPOS.

I'm trying to get an idea of whether it's realistic to install and configure OpenERP + POS for managing stock and sales, (in a single physical store), and write a little code to to syncronize stock levels between the ERP and the ecommerce site, all in about 200 hours.

I'm afraid I'm no code nija either - I've a couple of years writing python (django), and I hacked around with open bravo (installed it for a shop with a couple of physical locations then hacked at the SQL a little).