My plane is NVFR and will never be IFR, so I'm not really concerned.
My reading of the CASA documentation is that the KLN94 and KT73 is acceptable in my situation, so I still hope to go with that.
With a bit of luck I can get the old Narco AT150 thru one more inspection and hopefully the equipment will be less expensive then and an Avionics LAME easier to find.