I have a set of BMW timing tools for rent. They work on the M62 4.4L V8 BMW engine found in the 1999 to 2003 540i, X5 and some Land Rover vehicles. We rent them out for $75.00 for a few weeks. They cost about $800 for the complete set with the clamps, and engine bay hoist. The actual timing job that you require these for takes about 2 hours. The entire job can take between 17 and 30 hours depending on how much cleaning and detailing you get into. I have done the job 4 times now and can offer you some advice to save you some time, energy and possibly some parts. I can offer you some tips to save your upper oil pan gasket so you don't have to lift the engine and undo the engine mounts... Drop me a line if you think I can assist you in any way, Cheers and happy wrenching!