Question about brand-free option
 

I have a site I need to get up and running soon and vBulletin has made my short list.

I will be needing the brand-free option, however, I was hoping to buy the software now so I can tinker with it, and add on the brand-free option just before launching when I have more funds in place. Is this possible?

Then again, I may be waiting for 4 to come out, but that would push my launch date back quite a bit.