How much should I be asking for it?

I believe you can get between 50-100mil for it, maybe more. It is one of those hard to get items from the Hustler.

I paid about 250mil for mine about 3 months ago.

It took me months to find one at that price. When people first get them from the hustler, sometimes they get quicksold in the 100mil range, but I know there are people out there willing to pay more.