Probably a trade in for 808.3 to 808.4.. Who knows, but the 818 is the best Sooloos endpoint currently and priced right IMHO. The 808.3 Ruby might be close though.
BTW might I suggest exchanging your Talos to wall and Talos to DSP8kSL cables to Shunyata Hydra HC cable? I just saw an obvious opening for improvement in your setup. A zitron Cobra for your 808.3 will complete the transition.