My solution is the same arrangement I use at home. I use a Porlex hand grinder to grind the beans, and an Aeropress to do the extraction.
The Porlex mini grinder (https://www.porlexgrinders.com/collections/frontpage/products/porlex-mini-grinder) is perfect for a single dose of grounds, and is very compact; although it doesn't have a convenient way of containing the handle. The Porlex grinders are high quality - i.e. ceramic conical burr grinder, and with good fresh roasted beans provide a great result.
The Aeropress (https://aeropress.com/) is also quite compact, and I can, in fact, fit the mini grinder inside the inner plunger of the Aeropress for transport. The only things I can't fit in this package are the grinding handle for the mini grinder and the paper filters for the Aeropress, but these are both small and can fit wherever you have a slot of space. The Aeropress comes with a scoop, funnel and stirring paddle; none of which are necessary for its use, so these things don't need to take up any of your packing space.
I am very lazy, but I am also not a savage, and this equipment gives me the ability to produce a wonderful cup of proper coffee with a minimum of fuss or hassle, and it just happens to have the side-effect of being a physically compact kit.
All you need apart from these items (and your beans) is a cup and hot water.
I have used this paraphernalia when camping myself, and I found it to be a very effective solution.