Yes I was surprised too when I started to rebalance prods mods in FS22 (Imagine how it was with production revamp) and I know how hard it can be to find a fair solution when we want to add new fruits/products. For building I don't hesitate to make them paid between 14 and 24 months. Not instant money but give more fun than the fu... 2 or 3 pallets/month (less for fabric) from some vanilla prods. I try to always have something to do, not spending my time pressing "R" to sleep for months and neither playing "fenwick simulator" with pallets everywhere.
That's why I told you to have a look to the txt file with the price per liter and liters per Ha of your fruits. In example you lentils cost 10 times you onions BUT you harvest 25 times more onions than lentils. Finally in 1 HA field you can make 8600€ with onions and only 2540 with lentils (in direct sale). Of course it possible to re-balance that with production but do you really want to have only 2000 liters/Ha of lentils ? Drypeas and millet seems a bit weak too. Look at it, tell me if you want to keep as it is or make changes and it will give the base to rebalance the prods.
I saw you're planning to edit the european map, did you try this one ? Not european at all but gorgeous, totally alive (sounds of birds, wild animals, water when we drive/work) only sawmill present so let you free to create production sites.
