Thanks, so far, for the responses... I'm not ignoring them, just
digesting them... ;-)

I'm not afraid of getting my hands dirty, but am thinking about the
implications and the logistics of going down that road. Evening and
weekends are really the only times I would be able to work on it, and I
don't have any friends that are A&P's or IA's. My mechanic and another
mechanic I know would not likely be excited to help me on evenings or
weekends, just so I can save money.

I would actually love to do something like this, and would love to know
as much as possible about my airplane, and its systems, but I also
recognize that my mechanic aquaintences have businesses to run and
bills to pay, and helping me learn more about my airplane on their free
time might not be a high priority for them.

I haven't talked to any local avionics shops yet, as I was looking to
get feedback here first, so I could have my ducks in a row. I don't
know yet what a typical shops policy is on bringing in equipment and
having them install it, as Brian pointed out.

I would really like to have a long term plan, so that as components of
the stack go belly up, I will already have some idea of what the plan
was for that component anyway. Right now I just need an audio
panel/intercom. I really need a second com too, but as Doug pointed
out, I "could" plug a handheld into a music input of an intercom. My
current intercom doesn't support that, but most new ones do seem to. I
think my "long term" plan would include a second panel mounted com,
with a handheld to be used in case of an electrical failure.

ADF... Don't want it, don't need it. Would open up a lot of space in
the stack if it weren't there.

DME... I would like some kind of "legal" distance measuring display
mechanism in the plane, as there are a lot of approaches that require
DME, and many fixes that are not identifiable from a VOR(s). A
handheld GPS will be a fantastic addition for situational awareness,
but doesn't make for a legal option when DME is required

I "am" willing to take the time and do it right, but certain financial
limitations apply. If somone's interpretation of doing it right is
installing a $30,000 Garmin stack, that just would not be possible.
However if replacing the wire, while replacing the component is doing
it right, then I'm in... It would just be a matter of working out the
previous logistical issues and doing it myself or making that one of
the requirements for any avionics shop that might be doing the work for
me.

Thanks for the responses! I'm still feeling a bit like a wide-eyed
deer looking into the light, but this too shall pass.

Best Regards,
Todd