When I did the stroker swap into my 86, I swapped in the whole AC system from a YJ do to the belt/compressor and avaibility of parts from the 87 up and LACk thereof for the 86 back. I'm swapping the whole CJ set up into a Scrambler, but yes, I too couldn't find parts, namely the correct late CJ condenser in the pictures above. The tube is part of it and would be a pain for aftermarket suppliers to make/ ship/store. I would use a YJ dryer (or one like the CJ) and carefully spot weld the bracket on to match the condenser IF yours is in good shape.
1975 CJ-6 1983 CJ-8
1986 CJ-7 Laredo 1986 TJ-7 Trail Jeep
2003 Inca Gold TJ Rubicon