I generally like 15-20% of calories from fats, but this depends to some degree on total caloric intake. At 3500 calories, I'd shoot for about 20% which is roughly 75g of fat... you may even be able to go a little higher but I'd keep it under 100g personally.
Yep, definitely continue eating carbs around your workout window. Take in energy (carbs) based on activity. This is clearly a time you'll need it. Further, protein synthesis will be heightened several hours PWO, while you're sleeping - so feed that recovery and growth!