The one on the left is from R&R and the one on the right is my personal favorite, the Phidias by Fonosmoak (Fono for short, LOL). You can find
threads for both of them on the suppliers forum. R&R opens up ordering for a mad dash sale when they clear out their backlog so you have to watch the thread closely. Fono takes custom orders during certain times (check the Phidias thread) and will usually have 30 or so units for sale via direct email inquiries and the thread every couple of weeks. I love the Phidias and custom ordered both of them to get specific woods and to get left-handed versions (my second is being built as we speak). There are lots of fans of both
mods so acquiring them can take some luck.
BTW - both run off of single 18650's or