I think a PI that covers beach and the gold fields will have the broadest appeal. It’s should be 5lbs or less. Built in batteries with external battery pack for extended use etc. strong ground balancing a must. Good iron check highly desirable. GPX coil usage would be nice. Manually adjustable soil timings would be a interesting option. Price 1;500 - 2,000 USD
1. Not needed
2. Not needed
3. External cables are the way to go on this one
4. 10x5, 14x9, 16 ….. all mono and double D on first two
5. 10’ perfect