Checking out all of my options, I have come up with yet another idea, and I want to compare cost effectiveness vs just buying a new setup...

I have:
HH Desert Rat, all original

I would like:
1. zipper mod added

2. change out suspension to something lighter, more compact.

My questions:

1. who is doing this work?
2. who does the best quality work?
3. whats the cost of each of these mods?