Installing a Sliding Door... Wood or MDF Composite?

[Elaine E.]

We want to replace these old, 90's bifold doors in a house that will be a nicer rental. The current doors open into the master bathroom and bang the vanity when they open, and one of the sinks is unusable when the door is open. The entry to the bedroom is right next to the bathroom, so the doors can't open outward either. 

The best option I see is a sliding barn door that opens to the side. 

I'm looking for something more modern like this option: https://www.homedepot.com/p/MM... ($500+ install costs).  But I also found a local carpenter that will make a wood one, same style but no windows (which could be better for a bathroom, and it's one less thing to break), and install it for $900. I estimate it could be about $200 more expensive for wood when install costs are considered. Is it worth a bit more to get solid wood? Does it not matter? 

There are cheaper doors that are more "barn/farmhouse" style but that doesn't really match the look of the house. The door opening is bigger than standard and there are fewer options available. 

Paying about a grand for a new one feels like a significant expense, but it is a problem that I think needs to be solved. I am new to this process and open to any thoughts or alternate ideas here here.