I have an assembled, tested and calibrated a T41 from 4SQRP that I built as a comparison to my T41EP that I built from scratch (no kit). I wanted to see if my no kit T41 performed as well as the kit from 4SQRP (which it did!). My T41 for sale has the "built like a tank" 20 watt amplifier from K9HZ. The last firmware that I installed is T41EEE by KF6VB. Of course newer versions of firmware/software have been released which you could upgrade the T41 to. The T41 is excess to my needs and I am hoping that someone who wanted this design but missed the one-time production run from 4SQRP may be interested in buying this completed radio. Please contact me directly if interested via PM or email me to the email listed on QRZ.com.