As of now, SSH checks support only  options as follows:

KexAlgorithms=diffie-hellman-group1-sha1;HostkeyAlgorithms=ssh-rsa,ssh-dss,ecdh-sha2-nistp256

 It would be very useful to add an additional option 

PubkeyAcceptedKeyTypes= 

 in order to be able to connect to legacy devices.