Poinz drew this of my E-Linear circuit. 10k a-a with screen taps at 20% for the 6V6 and a 6BQ7 up front will sound brilliant. Try it with 40% taps for 6L6's. B+ in the mid 200's and run class A bias. 807's are another option too. Or get the OPT wound with 20, 30, and 40% taps and perform your own experiments.

Small negative rail for fixed bias will double as a sink rail for a CCS instead of the resistor and requisite larger neg. rail shown in the schematic.

The grid chokes are just as easy to do as a proper output TX.
regards,
Douglas