try this
https://radiatordirect.com.au/JEE519...model=WRANGLER
supposedly a Nissens rad.
and it doesnt matter if it has the ports for an auto when used in a manual
when I replaced my OEM radiator many years ago it had the ports for an auto cooling lines in the original unit, even though mines a manual, as well as the new unit I bought. and as Jonny Jeep mentioned, you can re-use the old brackets by swapping them from the old to new, which is what I had to do
when you say you don't want an aluminium radiator I presume you are ok with plastic header tanks and al core? which as you would know are what the original Jeep radiators are
below is a photo of the original dissected radiator out of my Jeep showing the auto heat exchanger in the bottom header tank