I think you need the one numbered 3 on this diagram - "leather, 5 Speed, Heavy version".
https://www.realoem.com/bmw/enUS/showparts?id=AT32-EUR-03-2002-E46-BMW-325ti&diagId=25_0239
Then just ask Soper of Lincoln for a price for that Part Number - specifically ending "031" as the 6 Speed has the same part number but ends with "886", and don't forget to ask for a forum discount!
Failing that Cotswold BMW are pretty good too - that's where I got my 6 Speed one, and it's a definite improvement.
There are plenty of places offering copies online, but I don't think they are as heavy which is the whole point of getting one really!