Get the GD JJ preamps out of there! Ugh! I tried keeping them in there thinking the amp was voiced around them . But man, they are just horrible in my opinion. I replaced V1 with RI tung-sol V2 and V3 with Chinese A square getters and it just changed the whole dynamic of the amp for the better...
Ive had all of the above. They're all good in their own right. But, I will say the one I loved and still regret getting rid of is an early D60 with the choke! That's the one! And knowing your tastes in amps, it would be the one I would recommend.