Cost of converting a duplex to a quad?

[Chase Gu]

Hi, I am looking into a big duplex and thinking about converting it to a quadplex. Before I ask for quotes from contractors, I want to know the ball park of the cost.

1. Unit 1 on the first floor: 3B 2B 2200 sq ft. I am thinking convert it to one 1b 1b and one 2b 1b. Need a partition wall in the hallway, one new kitchen (including rough in), a new electric panel, add a door to the a bathroom (so people in 2b 1b do not need get through bedroom to access bathroom), and a new furnace (including rough in)

2. Unit 2 on the second floor: 4B 2B 2300 sq ft can be converted to two 2b 1b. Same thing: a partition wall, new kitchen, bathroom door and a new furnace. 

Any idea how much this will cost? 

Thank you very much!