K8060 with more powerfull darlington pairs/MJ11015/16

Want to operate my new k8060 kits from reichelt in bridged Operation. Inputs are balanced/inverted with transformers. Want to use one or more MJ11015/16 pairs in end stage. You surely tried similar circiuts. What do you suggest for R19/20? Other changes?
Different power supply up to 2X38VAC mx. in stock, 800W-900W, soft start with adapted secondary section. 2 Heatsinks, each 0,34 K/W.
Kind regards 056hofmann53, Switzerland

Sorry, we do not support modifications of our kits.
Please experiment, but keep in mind that this modifications void any warranty that might apply.