I am about to list my former home for sale. The realtor suggested I update the closet doors from the ugly old metal doors to new white composite doors. These closet doors are spread throughout the house in the main entry, the hall closet upstairs, and both bedrooms. In general the house is all white, I never got around to painting anything, and pretty basic. The closet doors are definitely dated, I just don't know if I'll get the money back out of them.
This is approximately what the old doors look like, but against a bright white wall and they are probably even more of a gross color, plus they have really ugly handles.

New doors

I am guessing we'll list the home for right around $90k and I'm hoping it will sell for somewhere around $85k. I can buy the materials (doors, paint, transition strips) for around $500. The plan would be for me to install them (I'm sure there will be a "Help me I've never installed anything like this before" post in the DIY section if I go forward with this.)
The question is - does this seem like a reasonable thing to update? Does it make sense to spend this money? Do you think this will allow for a faster sale or higher final sale price?
I know there is no real way to answer most of these questions, but I can't seem to make up my mind and I could use some additional perspective. I'm also a little intimidated by the DIY portion of this so I think it's clouding the "think like a buyer," portion of my brain. Thanks!