Thing is though at the age is, you don't see many second hand purchases these days. Look no further than Apocalypse at Drayton; up for sale for so long yet no one came forward to buy it and that was in working condition, a far cry to the state Enterprise was in.
Towers, if not controlled by Merlin, would have gotten a replacement for Enterprise at least two or three years ago and likely would have the flat ride situation sorted and given the current flat ride crises on the park, it might be easy just to get Enterprise running again, even if it's past its prime, rather than flogging it off and hoping for the best.
Strange things have happened though so honestly given the changes going round the park and possible return of certain rides, Enterprise might not be a bad shout.