Speakers for Office/Listening Room

Hello All….I'm here to pick you brains again.

I'm not set on an amp yet but it will most likely be a tube amp as I'm rebuilding a Dynaco PAS3 with all new components(resistors & caps).

We're going to rearrange the home office so here's what I'm looking at.

The Room: Approx 11' X 15' with 12' ceiling. On one short end wall, where we'll most likely put the chair, is composed of 3 angles not symmetrical . The Center is about 4' 6", one side 4', the other 3'.

The opposite wall has a large window (5' tall), looking to the left you have 28" to the wall from the window edge, to the right 31" to that wall. Above the window is another smaller half moon window the width of the large one.

The wall, looking at the window from the chair is clear but will have 2 small desks and a short cabinet. The wall to the right has a 6' wide French Door appox centered. Wood floor

We're thinking of possibly moving one desk in front of the window, putting a heavy curtain in front, and building two bookcases (L &R of the window) to store the Stereo and house the speakers.

Either way the speakers will need to be close to or on the wall.

I'm thinking Used speakers to get the most bang for the buck at around $400.

I listen to Rock, Jazz, some Classical (looking to get more), newer Jazz, some Bluegrass but no Rap, Disco, etc.

Yes, born in the 50's but I can still hear 17K and like tight bass, clear highs, and punch if the music requires it.

Sorry for the long post but I've read a lot of posts where the responders wanted more info. LOL

So, thank you for you help in advance. I'm open to any honest opinions.