Jet Provosts – info?

Hi Folks,

I’m trying to determine current whereabouts or fates of the following Jet Provosts:

XM465 Jet Provost T3A (cn: PAC/W/9273) – registered N7075H in 1993, but no longer on current US register, so where is it?

XN548 Jet Provost T3A (cn: PAC/W/9273) – registered N4421B. According to this website the aircraft is for sale in Colorado Springs:
http://www.airplanemart.com/advertisers/preview_ad.php?opt1=4a08142c38dbe37423195d41c04562d9f8
However, the US register states that the aircraft Certificate of Registration has been terminated, and that registration is pending for an owner in St George, Utah. The application was lodged on 28 Nov 2006, and applicant name is listed as “Western Sky Aviation Museum Inc”, but I can’t find any reference to this museum on the web. Where is this aircraft now?

XN595 Jet Provost T3A (cn: ????) – registered N4436P, but US register states status as “In Question” and owner as Gordon Leland – does anyone know where this aircraft is now?