"We may not be sued but there would be definite attempts to shut it down and a name and shame campaign for those involved.
"We have a 1970 curiosity of a couple of young blokes attempting social engineering that has no place in today's world.
"I realise Nat that you ... would like to bring it to life and give it a new sense of place and value.
"I must say that the cost to our lives and reputations could far outlay [sic] the benefits.
"For these reasons I cannot have anything to do with a reprint of Iron Outlaw."
Still, I am always one to respect all creator's wishes (or the copyright holder, if it's the family of the creators). "No" means "No". Without permission I just have to let it go. Sad and disappointed I may be, I'll simply have to move on to other projects ...