Not a bad price, considering that used MCI motorcoaches of that vintage sell for $30K to $45K and are likely showing a lot more miles than you would get on somebodies private travel coach. Starting with one of those, you would spend almost a quarter of a million on a minimalist RV conversion.
MCI of that era should have a Series 60 Detroit Diesel. I think it would be hard to find a better engine than that, on a North American motorcoach in the '90s.
I travel quite a bit on motorcoaches fitted out as tour buses (rather than inter-city, a different trim) and talk to the drivers. Most drivers prefer the MCI over VanHool for construction quality and handling, and kind of drool when talking about a Prevost. Yet they tend toward the idea that the Prevost coaches aren't that much better, considering how much more they cost; that could be a sour grapes thing, and it is a driver's viewpoint rather than an owners.
In most of the rest of the world, you see neither MCI nor Prevost, each nation has its preferred coach builders and multiple chassis choices, but M-B coaches, and other brand coaches on Volvo or M-B chassis, are considered top grade.
Funny that the listing says nothing really about the coach, just pictures of the decor and fittings. I guess that is what matters in that market. They tend to be ostentatious because with what you've already paid for the motorcoach shell, why not?