Do you mean oak veneer doors? They can only be trimmed a small amount so you need to get the correct sizes.
I know you said you need 11 - how many glazed and how many solid? Work that out, then measure them all. Every single door - often they vary a lot . I just replaced 6 doors in a one bed flat and they were 3 different sizes.
Then go online and get prices.
Add in a cost for handles, latches and hinges - again you can price these online. They vary enormously.
Matt black is very on trend now but they are hard to get and more expensive. Also the black hinge look a bit off in a hallway IMO.
Chrome ( polished , brushed or both - dual finish ) is classic .
Labour will be between £60- 100 per door for a joiner to fit then. Might be more where you live.
Most oak veneer doors can be finished with Osmo door oil, it’s easy but time consuming to do it yourself. Just mask off the glass and handles and sand lightly between coats.
Personally I’d used glazed on every door expect bedrooms, bathrooms and cupboards.
It will make a huge difference to your house.