How long will it take to configure 1.4-->1.5?

I'm trying to determine when I can update from 1.4.4 to 1.5, and I'm looking for an approximate amount of time I should reasonably expect to expend configuring the new 1.5 site after it comes online. Couple hours? My current site is small and with few products.

(yes, I know it will depend on site specifics - I'm just talking generally).

I think in max 3 hours you will be ready. I also updated a 144 to 151 and the longest part in the update was uploading the 1.5 files to server(kinda slow) , the the configuration + a template and few modules installed , around an hour.

Awesome, thanks!