about mercedes key programming

[BoNzOtM]

i want to make keys for mercedes with nec procesor but also to repair and test broken EZS and EIS ,what should i buy i have think to buy ak500+ ,but i have think to buy something cheaper like mercedes ir nec prog and a tester for EIS ? what do you recommend ,and also skc calculator..i need someone who do mercedes key and are a expert to learn me the procedure.... :P

[cqae]

theres lots out there. diagspeed, avdi, mercedes intrument, zedfull, mehaco, vvdi mb. I personally use avdi & am relatively happy with it. I think vvdi mb would be the cheapest choice. you can buy eis test kits that have plug sets to bench test units pretty cheaply too