That sounds like you want 2 suits... a drysuit cut to hold all the fluff for cold water will be a little baggy with minimal fluff. You can also just deal with the slightly less aero dynamic nature of it and use one suit. Cave cuts are not a thing with SS if I remember correctly.
Measure exactly per the video and descriptions, then round up to the nearest cm. Do this multiple times across many days and take your high average for each. Do this when relaxed. Have a buddy or partner help you because doing it yourself is a pita.
No elastic...
My trigon works every time and no plug to loosen, remove, or lose...
I can't find any specific wrist seals for the kubi system but these should work. I dive with no wrist seals and haven't had any issues. I'm a handsy diver and like to touch things so I put a lot of trust in my gloves and kubi rings. Showa 660 are tough gloves to beat.
Silicon Cone wrist seals for the SiTech Quick cuff system. Fits wrist above16cm, but may need to be trimmed to your size. (Pair) THESE CAN NOT BE GLUED Purchase SiTech Cuff seal SILFLEX Cone (pair) from Seaskin - drysuit supplies made to order directly from the factory.
seaskin.co.uk
You'll need the option given for them when building the suit plus the glove set side accessory. "Kubi dry glove system glove set only" in the correct size to match the ring size you selected when building the suit.
Browse Kubi Dryglove Systems from the Seaskin Drysuits online store - buy bespoke drysuits and components directly from the factory.
seaskin.co.uk
Measure exactly per the videos and description and you won't need gaiters. Those are a crutch for I'll fitting suits much like ankle weights are for new/poor dry suit divers.
I dive the Puget Sound year round. Having my hood bib tucked into the warm neck (standard, not simple) means I don't get any flushing or exchange to get cold.
I'm not a SM guy, but you def don't want them on the side of your leg.