noid light recommendation

[Key West Jack]

I am going to purchase one. I would like one that checks both injectors and spark. I have a 90 L98, 2000 Ford Triton V10 motor home, 2000 Jeep Wrangler, and a 03 Mercedes M Class. If I can get an all in one quality kit that would be cool, (of course the Vette comes first). Recommedations are requested. Thank you for your input.