P320 only have 4, will have one spare mag once a battery arrives.
I suspect that since the mags have a battery and as you say don’t look like mags will be fine, the risk is low but never zero sort of thing.
Blasters are starting to run low in supply for the store, still have a few waiting on some parts or batteries
I do have a load of gens ace 7.4v and 11.1v batteries… and will make a listing for “change to deans” option.
I will not change to Tamiya as they are hot garbage and I can’t recommend them as a safe option though!
Xt30 is a great plug, only less the amp potential you shouldn’t need in a blaster, much more secure and safe connection but understandably less popular.
I’d say it’s usually a case of set the bar high because you know people are going to lowball you so it gives you a bit of wiggle room to negotiate, but then there’s just flat out rediculous expectations
And yes, I believe it’s a re-issue of the OG Seiko 5 Military released in the 60s. It was bought by my late father-in-law when he was working on ships sometime in the mid 80s, so about 40 years old.
I believe the current equivalent is a Seiko 5 Sport Analog.