Not directly about BAF but the article gives an idea of the costs involved for 16 Block 70/72.
Keep in mind this is a repeat buy for the F-16 so the costs will reflect that.
https://www.janes.com/article/93267/lm-begins-f-16v-production-for-bahrain
LM begins F-16V production for Bahrain
Gareth Jennings, London - Jane's Defence Weekly
18 December 2019
Shaikh Abdullah bin Rashed Al Khalifa, ambassador of the Kingdom of Bahrain to the United States, visited Lockheed Martin’s production line in Greenville to mark to start of the country’s contract for 16 new-build F-16Vs. Source: Lockheed Martin
Lockheed Martin has begun production of 16 F-16V Block 70/72 Fighting Falcon combat aircraft for Bahrain, the company announced on 17 December.
The event was marked by a visit to the production facility at Greenville, South Carolina, by Shaikh Abdullah bin Rashed Al Khalifa, ambassador of the Kingdom of Bahrain to the United States.
In June 2018, Bahrain became the launch customer for the F-16V when it signed a
USD 1.12-billion contract for 16 new aircraft. The Royal Bahraini Air Force (RBAF) will also upgrade its 20 Block 40 F-16C/D aircraft to this latest standard to make a total fleet of 36 F-16V aircraft.
As the most up-to-date version of the Fighting Falcon, the F-16V features the Northrop Grumman AN/APG-83 active electronically scanned array radar (derived from the F-16E/F Block 60 AN/APG-80 and also known as the Scalable Agile Beam Radar), a new Raytheon mission computer, the Link 16 datalink, modern cockpit displays, an enhanced electronic warfare system, and a ground-collision avoidance system.