At the risk of answering my own question, after doing more research and experimenting it appears the answer I was looking for is as follows:
Lucky Imaging and Firecapture along with EKOS.For imaging many frames and high data rates it seems that firecapture is one solution. I'm running Ubuntu 20.04 on a Beelink with dual processors so have some bandwidth to run other tools.So far the first session targeting the moon used Kstars/EKOS with a configuration with only the guide camera - but no guiding selected. At least one camera is needed for an EKOS config. The OTA was then controlled by Firecapture. EKOS is used to drive the mount to find the moon and switch to Lunar tracking rates. It still slowly moves out of frame but I get enough images before it's gone. Set Firecapture to 5000 frames and let it go.
The results is a 14GB file (yes GB) and a USB stick with standard FAT32 can't handle it to transfer the image out. Instead it needed to be reformatted to exFAT. Then processed via AutoStakkert. Noisy jpg version attached.
WO ZS61 II, ASI183MC Pro, ZWO 120MM-S Guider, ZWO EAF, HEQ5 Pro, INDI/EKOS on Ubuntu 20.04