Garmin 430

I have a VFR only 172 and I am considering IFR training.

I am looking for the most practical way to make my plane IFR certified
and useful.

At first glance, it appears to me that the Garmin 430 provides a LOT of
useful information for relatively not much money.

I have 2 questions though....

to use the glideslope / VOR / LOC functions of the 430, do I have to
have a glide slope indicator and VOR indicator or are these bits of
information displayed on hte 430 unit?

Is this one piece of equipment enough to enable my 172 to be instrument
certified?

I realize that I will be needing backup instruments to reliably fly in
IMC, that will come with time...what I need now is training and learned
proficiency.

Thanks,

Jamie A. Landers
PP-ASEL