Crank Sensor Problem?!

After the car was Send to *PRO CZECH MECHANIC yesterday he told me the crank sensor have no signal ,that why the engine not start! ohh yaa, and before 2 months,he told me when he put new spark plugs ,the engine start! and he left the car since then, till before 2 weeks from now,and he call me,and told me the car again not started and he found the Starter (bearing) Rotor damage! COOL! new starter changed before year, by the way!
(I remeber i told him its impossibe the issue is Spark plug ,and i post it here in forum ).

ok.... lets get in the story, the PRO guy,call me again befor 4 days and said the engine wont start after fixing the starter.WAAW!!
he said my Z made him nervous!! ohh realy, who should be piss off and nervous now??!
Guys, i start to hate this car,and wish to burn it,and finish it! I have no luck with this Z.

last year,i lost my chance and enjoy my holiday and sticking with my brothers in Prague Corvette Gathering, and now again this 2009 gathering 18 July , i will lost it,and have no fun !!!
So any one know where to get Crack Sensor to put end to this tragic story, Maybe if there isnt any other real issue NOT the CS problem.
what do you think is going on? any idea?
the car is 500 Km away from City where i am.