Sorry for the blank post.
The crank holder tool is available from FCP Groton, and I've found it pays for itself (no hassle, I've done the rope trick too).
To remove the cam and intermediate shaft sprockets, I've had good luck using a strap wrench to hold them while I remove the bolt; cut a piece of the old timing belt to fit around the sprocket, this will protect the sprocket teeth when you apply the strap wrench--still takes a bit of care,though. Doing this its hard not to move them, but you can always line them back up with the marks even if you do.
As for the all the seal installation -- PVC plumbing pieces have worked for me great, just take your seals to your hardware store and find the size that will do the job -- just under the outer diameter of the seal. Be sure to pack grease in the back of the seal where the spring seats, then when you tap the seals in it won't come out. Oil the seal lips and the shaft before installing them. Mark your pvc tools "Cam" and "Crank" and put them away for the next time you do the job.
Good luck. Its a great feeling after doing this job to have the engine start right up. Check for leaks. Remember to re-set the timing belt tensioner after running the engine a little while, then again at 500mile as others suggest.