Thanks to each of you for your prompt replies.

I'll have to give this some more thought and give my choice some trial runs before touring.

The Mallet pedal has release using a inside ankle motion which might be a challenge for me.

The MKS and Multipurpose pedal are interesting options. I've used spd's before but switched to Frogs for easier engagement.

Flat pedals or a bigger platform pedal would hopefully help with my hot, numb feet syndrome too.

I'll let you know what works for me.