You could just bolt those things on, it's a pretty easy deal .. but like Z3PR said, gearing can make all the difference.
What do you plan to do with the K5? What type of wheeling, how much ... future plans ... daily driver?
If I may make a suggestion... hold off doing anything on it right now. I know it's tempting to jump right in with both feet.. but I would suggest hanging around the forums here.. and reading on the different swaps etc that people here are doing. Depending on your future plans.. you may save yourself a lot of time and money. I'd say give it a couple to a few months, and then see if your plans have changed. Listening to others experience with different set ups (perhaps ones you had planned) could help guide you towards something better, and you'll benefit from not having to spend the money & time only to find out it has it's short commings. If, in the end you still want the first plans, then you've not really lost anything... but if you do change your mind.. the savings can be 10 fold.
