Ebay is one source, this site in WTB/WTS is another. Read through the posts here. Much depends how much you are willing to pay. Prices can vary on age, condition, etc. Also, depends on patience.
.38 is the most common Star caliber, followed closely by .45. so if you have enough patience you should not have a problem locating a .45 set-uo, if you are willing to wait. Since you have a universal, you can easily swap out the head, and shell plate, and primer punch, and be up and loading in 2 - 3 minutes tops, in lieu of needing a complete machine.
The 9mm is harder to come by than either the above, but other calibers are often even more difficult.
If you have little or no interest in 9mm, you could most likely find a trade.