Directed Electronics is by FAR the best products to use (fortin is good stuff too).
I too also use the DLPKGM module, (does heated seats and re defogger automatically depending on outside temp. via data. might not hurt to ask what one they will be installing. but realistically $80 installed doesn't sound to bad the labor to install one is only 10-15min for someone familiar with them.
BTW 92-99 Bonneville have VATS, 00+ have PK3. you cannot just bypass PK3 like you can with a resistor in VATS. it requires a module, I dont think i could even think of a way to ghetto rig past PK3 unless someone literally stuck a key next to the ring
... no remote start should take 30seconds to start a car hopefully they didnt hack up your car. it literally takes an hour to do for a pro.