Another option was just presented to me that was similar to my original plan. I’ll still call Marissa to see what she might have available. Too bad about Waterworld as I have Zeagle regs and they were a dealer/service shop where parts are free for life. I’ve tried the cavern diving as I’ve been in most of the springs here in North Fl, but I love coral reefs and the ever-changing life around them. My thought on springs/caverns is once you dove it, it doesn’t change much. They’re good to build some experience though. Be safe and have a great time!