Let's haggle :D

I would imagine it would sell quite well, as a banner trade with another site would certainly bring traffic.
How hard is this going to be?
The reason I ask, is because I've spent hours wasting my own time trying to incorporate content from one database, into a different site, and don't want to waste yours as well :lol:
I'll happily pay for this, any sort of ball park figure roughly/maybe/possibly wandering around the back of your mind?
Being honest, I have no idea what to expect to pay.