What did you guys thought about a baler with a rake mounted on ta the adze?
The adze will need to be longer and stronger but you may save some fuel with doing 2 jobs in 1 time and grass may longer dry in the baking son.

For straw should it be handy to (I think…). Mount a rake of 6 metres of to the adze and you can bale 2 lines of a 5 metres combine in one pass by driving in the middle between them.