Yes it is. I've built a version now that is almost an exact replica, but only working with 1.5 seconds reverb time. All the delaysettings need recalculating for every reverbtime preset. Dr Blesser explained to me that he did a lot of work on that. And because of other business and studiowork I did/could not spend a lot of time on this project. The sound of the replica is great. I am using the replica on vocals mainly. I compared it to the sound of the original and they do sound alike. Some of the differences I still need to tweak out.
When we had a shootout lately it sounded a lot better on vocals then the Lex 300/PCM 91 and a lot of the presets we tried in the 8k. After that experience I am putting some more energy back into this project.