A rookie attempts to change transfer case chain

[skipbrakes]

Help!

I own a 97 Range Rover p38. Recently it has developed a clunk clunk sound that occurs on acceration. At normal speed there is no sound. I have searched the help blogs and figure that it is the transfer case chain hitting the walls of the case. It has the Borg Warner transfer case on it. I have decided to have a go at the repair myself. I have jumped off the edge and ordered the hy-vo chain that is OEM replacement.
My question is: As a reasonably talented non-mechanic with all the tools to do the job, am I biting off more then I can chew? It appears to be a straight forward R & R on the transfer case, and then on into the case itself. I have been told that its not hard to find your way around the inside of the case and make the actual chain replacement. I am interested in hearing from anyone who has done this operation about the difficulty of the task, and where I might find any supportive blogs, diagrams, or other information.

Thanks in advance
skipbrakes!

[jrandsu]

I took mine apart to replace the chain. I didn't quite replace it, but it was very easy to access, and I did pull it off to look at it. I found a replacement case, so my original is just sitting waiting for a chain. It was easy to open the case up.I did pay to have the old case removed and swapped with my new one. Taking it out of the car may be the most difficult part.