Chosen Solution

If the flat cables on the old housing are still functional you can remove them with the help of moderate heat and if you don’t keep them hanging around catching dust they are usually reusable on the new housing. They are surely of a better quality than what you find aftermarket. Whatever is not working and needs replaced usually comes with biadhesive already applied. The only really tricky part is the charging assembly as it’s glued to the housing with a special conductive adhesive for antenna grounding.. take your time to make sure that it doesn’t stick to the housing and apply some mild heat when you place it on the new part so that it sticks properly or you might have troubles with radio signals.