Maybe i can help you here. Go check out www.ebay.com and select the "computers" category. Using their search engine, set to "search only in computers," search on the word, "Aces". I just checked and there are three or four "Sierra Aces Collections," all currently at $4 or less on high bid. For a small price, you can not only replace your Aces of the Pacific, but get Aces Over Europe, Red Baron, and A-10 Tank Killer as well.
I have Aces of the Pacific and went and dug out the box thinking i would be able to help you but it's on CD rather than the old floppies; was going to mail them to you.
Anyway, check out eBay. That's where i always seem to have pretty good luck when looking for discontinued software, not to mention newer stuff at usually lower prices than the stores.
56th MSA Fighter Group
"A mind is like a parachute; it only functions when it is open." Sir Lewis Dewar
One step further, "I may not agree with what you say but will fight to the death for your right to say it"