Southern Cross
The replica had a mishap in Adelaide some time ago. One side of the undercarriage collapsed just after take off. Pilot shut everything down and did a great job of landing on one wheel, then dropped one side down, with some engine and wing damage. I'm not sure if it's been repaired or not.
Engines are Jacobs R-755's. Running J-5's are a bit rare.
The original Southern Cross was restored to display condition and put in a display hangar at Brisbane Airport about 25 years ago. When the new airport was built, a new hangar and Kingsford Smith Memorial was built, and it's still on display there. It's an excellent exhibit, complete with lots of info on Smithy's Pacific and other flights. If you're in Brisbane, don't miss it.
Thanks Sturmvogel for the info on your other engines. Good luck with your collecting.