How much is this costing, if you don't mind me asking? We have Q model that we are looking to upgrade the panel on. Right now, have the Aspen 1500 PFD, MFD, 430W, STEC55X and a GTX330es. The backups are vacuums. Looking to keep the 430 for WAAS, and add single G500txi, GFC600, 345R, and a G5 for...