you are faced with an everyday repair shop peobem, i.e. the relatively inexpensive instrument with relatively expensive problems.

depending on where you are in your career it seems you have two choices:

1) offer the client your fair price to effect the repairs, cracks, reinforcement, frets, bridge plate repair, new bridge and let him decide whether it is worth it to him, or

2) do the work at a discount commensurate with the value of the guitar. the client should go away telling everyone he knows how you saved his guitar, and/or you may build you chops/learn something.

either way i recommend you invest in the stew-mac bride saver tool kit, cat no 5240. it is expensive but it make this sort of job a snap and should pay for it self in short order.