You need to show them how they can make a profit.
This part involves making a presentation with the proper math, but more over, having someone/some-company pitch it that has a track record of making things of this nature successful.
Here's my confusion, why would CCP need to spend 250,000? Wouldn't the onus of the cost be on the party making the pitch to CCP? If the party lobbying to re-start VTES wasn't footing the entire bill from front to back, I don't know why CCP would even bother looking at the proposal.
I would assume that the proposal would have to be: pitched by someone with a track record of success, note that all the cost would be covered by the party wishing to re-start VTES, that a reasonable RoI would be given in tangible numbers, that CCP would be given 5% to 15% of sales, and also leave room for CCP to come to the table with a monetary figure demanded on their (CCP's) part just for the third party to come "on-deck" and move forward (I.E. check to see if the third party is really serious).
Again, though, i think all this is unimportant compared to the fact that (unless i've made a mistake which is quite possible) hsbro/wotc need to give approval as well, and i think that no matter what is offered, they are just going to say "no", as VTES competes in their market. Although i really would like to see if that is true, or if they don't care just as long as a certain monetary number is hit as a falt fee to hasbro/wotc as well as a cut of the profit, or if they have no say at all and if all the negotiations are done via CCP/whitewolf.