Speaker dilema

Hi, I'm new on here so please bear with me. I'm hoping that I could get some opinions. The current HT setup I have is a Yamaha RX-V671 reciever, Yamaha NS-2HX bookshelves up front, Yamaha NS-C5HX center, Bose (I know) 161 surrounds, and a Cerwin Vega LW-10 sub. I really like the HX series speakers and I tried to make a complete set by getting the 8HX's for the fronts but due to their cost was unable to get them before they were discontinued in 2003, I think. Do you guys think I should just sell the HX's and get a complete matched system or keep the HX's and buy some towers that would closely match them. If so what do you think would match well? I appreciate any help I could get. The towers would be in the under $500 range.

Get a matched system at least for the front and center channels.

Get a pair of these-

Monitor Audio - M4 - Tower Loudspeaker-Audio Advisor

Music Direct - WHARFEDALE - EVO2-20 TOWER SPEAKERS (PR)

Mordaunt-Short - Carnival 6 - Tower Speaker-Audio Advisor

Shoud I try and get horn tweeters like the HX's have. I could go with Klipsch or I could go with the Yamaha NS 777. The construction is similar to what I have already. They have the waveguide tweeter but it's 1" instead of 1 1/8" and the woofers are a different material. The HX series was basically the high end version of the 777's. Any thoughts