Ordered Xigmatek Gaia, which is 159 mm tall. This size seems to be ok in quite a few of smaller case builds I've seen around, so hopefully not an issue. The RAM heatsinks have gotten ridiculous since the last time I looked at them
I am thinking of getting Corsair Vengeance CML8GX3M2A1600C9 (1600 CL9 1.5v), which they call 'Low Profile', but in fact it's just a normal sized DIMM without the fancy heatsink.
And thank you for the tips, it's very helpful and I am sure there will be something I forgot despite all the research, so keep them coming!
Btw, your laptop mod is amazing, really impressive stuff.
In a related note, I have splashed on a small oak desk earlier today (a shopping frenzy + massive sale over at Oak Furniture Land + Quidco), so water cooling is definitely out of bounds for now
)