RT-AC66U_B1 Tomato Fimware Recommendation

Ten year old WRT54GL cannot stay on for more than a few hours without restarting so unfortunately need to replace. Understand that the RT-AC66U_B1 is an ARM device (https://www.snbforums.com/threads/can-asus-rt-ac66u-b1-run-asuswrt-merlin.35323/page-2#post-293351) among others.

Is tomato-RT-AC68U-9008.8Toastman-ARM-VPN-64K.trx the correct firmware for the RT-AC66U_B1? Secondly has anyone been using a RT-AC66U_B1 with Toastman or Shibby Tomato so far?

For learning purposes what...

RT-AC66U_B1 Tomato Fimware Recommendation