I got the antares seal system, its worked fine so far, common opinion is that they suck and will fail, I haven't had issues. I would order a full set of extra seals, nice to have if you rip one, can swap out super quick. I haven't used Kubi rings, however if they have a way to purchase just a second set of gloves and rings for the glove side I would do that. It is super nice to have a hot spare ready if something does rip, and you can do 2 different sized dry gloves based on what liner you will use. Also consider a hot neck, either one is fine, I have the standard version, that way you can tuck a hood, you will notice a difference in warmth at the neck if you don't do this at least I did the few times I wore my hood not tucked in. I wear US military surplus waffle tops and bottoms with wool socks and weasel extreme booties down to 60 degrees, stay pretty warm especially if working, that's like $50 instead of the amount seaskin charges. I have a Fourth Element Halo AR for colder and can combine both when temps are down in the 30's. I did take my waffles only down to 45 degrees on a working dive recently, didn't realize it was that cold below the thermocline, was manageable for the short time I was down (20 Minutes), was also amped up since I was working, YMMV. I would also recommend neoprene socks and rock boots, gives you more flexibility and if sizing is off you aren't screwed, I use Walmart brand knock off converse, rip the insoles out until its just fabric and rubber, drilled some holes, have worked better than any other rock boots I have used. If I wear them out, I just get a new pair for like $15. Also make sure to get a hood if you don't have one, and expect to maybe need a different fin, I found I didn't need the RK3HD that I figured I would, instead I have had great luck with the Dive Rite XT fins and they have fit my "rock boots" perfectly.