Vic, in my previous posts, I was very specific about music listening being stereo, 2 channel only, and Thirsty93 did not respond with an objection. The use of a stereo preamp with HT bypass will completely separate stereo music listening from the rest of the HT system.
I do agree that the positioning of video display and L/R speakers will affect stereo imaging. I have proved this to numerous friends by listening to some music, then cover the display with a blanket to reduce reflections, and listen again. One guy didn't have flexibility to move equipment, so he would cover the TV when he listened to music. Ideally, for 2 channel music listening, the least amount in between the speakers, the better. Thirsty93, I think it would be an advantage to try and get your L/R speakers slightly in front of the equipment between them.
Thirsty93, here is a tube preamp with HT bypass that gets excellent reviews, and within your price range,
Jolida Fusion Tube Preamp
Ironically, the back panel I provided in a previous post is this preamp.
BTW, I am not affiliated with Jolida in any way, but do have a close friend that uses some of their products and loves them. I do trust his ear as he is an excellent pianist, having taught piano in the past and played in the public for different occasions.