I would rather see a 060 card but lack of 060's would be a problem, so I agree with wawrzon and NovaCoder.
There is no lack of 68060s. There is only a lack of the newest 060s that can be clocked at 90MHz plus.
Completely lost interest after I got a Pegasos2 G3, classic is cool with an 060 for demos and games thought...
G3? Really? Give me an Amiga with a 100MHz 68060 using modern memory and a full speed PCI bus and you will be surprised at how little all those MHz do for you.