Help me select the right boat.

Hello everyone I'm new to this forum but pretty familiar with boats. We have decided it is time for our family to step up and buy and actual tow boat. But the kicker is we can't spend more than 10k and would like to be closer to 7. I know that's a tall order but the budget is firm. Our last boat was an 89 rienell Sunchaser. But we would like to look at getting away from i/o boats. I have been leaning towards a prostar 190 even though it is more of a dedicated ski boat and we do more boarding. There is a gentleman selling one in mint condition near me for 7k. What other boats should I consider in that price bracket. I would like to stay away from wood stringers if at all possible. Sorry if these are all newbie questions. Thanks in advance.