With basic EIGRP configurations there shouldn’t be any issues with EIGRP configured routers to able to create neighborships between each other. At this point I’m not 100% sure why this is an option but it is.
Below is an example of how to configure it. (I created a new sub-interface Gi0/0.70 on R1 and Fa0/1.70 on R3 for this example, just to not mess with the the current setup I have on sub-interface 60).
*** Super important, the static neighbor configuration needs to be configured on both routers ***