Whoa, $1.5k is in the range for a reasonable doubles kit.Just a suggestion that may get me in “hot water” with the local dive shops (!)- you can build a custom kit using discounted and highly rated (you want to look for BOTH criteria) components at Leisurepro. It is possible to get a full kit for less than $1500 there.
An entry level singles kit can fit around $1k. You'll go over it if you go for nicer items, of course.
Let's go through this piece by piece.Give me your 1 or 2 most trusted brands if you have to buy the *cheapest* regs, bcd's, computers, etc.... Thanks
Mask: Any black silicone mask that fits you will work the same. Low volume is better.
Fins: A piece of rubber/plastic. Comfort is the most important factor. Jet fins (favored in overhead diving) are a bit pricey, though.
Harness: Most are just standard 2" nylon webbing.
Plate: Get a metal one (Al for tropics, steel otherwise), all are good.
Wing: Just size it depending on your exposure suit thickness and tanks (steel or Al).
Wetsuit: It's a suit, as long as it fits - just get a scuba one, not a surface sports one. Drysuits are very much not the same though.
So brand is irrelevant for all of the above, just pick what suits you.
Regulators and computers are the only pieces where brand may be a deal-breaker.
For computers, ZHL-16 is the preferred algorithm. Mares can be troublesome. You ideally want something more long-term than a single-button, so Geo 2 is a good one. All in all this is an item to think about in depth.
Almost all modern brand-name regulators are at least very decent. You may want to consider a membrane over piston if you tend to dive in murkier waters. Otherwise modern pistons are good as well. Consider serviceability in your part of the world.