3. (a) That's correct. There are various alternative remedies available. The plaintiff can ask the court to order the actual return of the goods. Alternatively, the court can order that the value of the goods at the date of judgment be paid by the defendant. And damages can also be awarded to compensate for any losses suffered as a result of the failure to restore the goods when asked.
In this case, B could ask for the return of the saw and, failing its return, damages equal to the value of the saw. B could also claim the profits lost by being unable to use the saw and complete the work in the department store.