Yes in my opinion heat development in Hubs vs. DD iS negligible.
If I would start from scratch at the moment I would go with these gear drives from @avX .
They are quiet come with good trucks, you can choose between Urethane or All terrain wheels.
But they are pricey, you will likely hit that 1500€ mark.
Herringbone Gears Avio MK2 Gear Drive
Another thing I would consider is the enclosed belt drive by @Boardnamics. Since it’s enclosed it should be quieter than traditional belt drives and his stuff is affordable.