2 separate fouls during shot

[wanja]

Consider this sequence:
1. A1 releases the ball on a try
2. B2 fouls A2 away from the ball
3. B1 fouls airborne shooter A1
4. The ball enters the basket

I've got
a. score the basket
b. charge B2 and B1 with personal fouls
c. administer a free throw for A1 with the lane cleared
d. administer throw in for Team A at the point closest to the foul by B2

I've got no direct rule or case reference for administering the free throw first -- only that this seems the only practical way to administer the penalties. Any different interpretation or clarification?