Paul the mounts and rod ends that you suggest have
a heat tolerance of  +180 degrees F.  Is this enough
as surely it is fairly normal for a motor to get to
212 degrees F.   and that heat will be transfered to
the mounts.  Will they take it or is there another
brand that will ?     Neil.

There is enough heat lost in the motor plate spacers
and the plate it self so they never get that hot.

This is the same rubber compound Barry uses in their
certified air craft motor mount  bushings.

There is a sandwich plate type  mount that goes between the
engine and the oil pan and that aluminum plate is intimately in
contact with the hot oil. I have seen signs of the rubber
bushings melting in that case. Needless to say I do not
recommend that type of mounting for that reason and  other
reasons having to do with exhaust system clearance.
Also it is twice as hard to keep it from leaking oil.
You have two joints instead of only one.

Paul Lamar