ImproveNeo is a Greasemonkey script that features DIPR(Direct Item Price Report).

When you double click an item name, a little Javascript box appears with the lowest shop wizard prices without you having to leave the page and going to the shop wizard yourself. You can then go from the Kitchen Quest straight to the shop selling one of the items cheapest so everything is much easier.
To use this you will need the Firefox add-on, Greasemonkey.

Click here
To download ImproveNeo click [url=http://improveneo.com/improveneo/]here
[/url]

And last but definitely not least, here is the demonstration

Its a bit small and hard to read, but I'm sure you'll see everything OK.