I'm a fan. It does seem like the good el84 tubes are becoming expensive. I have a 10" arm on its way. SorryI am on the hunt for an el84 amp myself. I have heard great things about the Montille and one of the best bang for bucks (oxymoron alert) in the Shindo line up.
El84's are so fun. The mid-range and mid-bass just jumps... at least on the ones I've heard.
BTW... I have the perfect arm for your new 124. Warning: Shameless plug for a 9" arm for sale.