Well, the obvious advice is to post it in the Classifieds as that is what they are there for. There's even a link at the top of the page for you.
Or, you could just privately sell your current vehicle and use the proceeds to buy one equipped with an MTX.
And to answer your PM to me: I'm neither immature nor illiterate. But I have to tell you that I think it's crazy to think that somebody is going to take you up on your offer as previously written.