I have been all the USA, the Bahamas, Cayman Islands and Mexico with steam gauges. A glass panel does not make the plane fly better.
What he said.. The plane doesn't know the difference.
My father and I bought our -6 back in 2004 and have been thinking about glass for a long time. Both of us have flown all over the world with steam gauges and we've both flown all over the world with glass panels.
We are at a point where we are considering an autopilot, so we've decided to get a Dynon (of some sort, we keep changing our minds) to get the autopilot and an EFIS/EMS all at once..
FWIW - A Dynon FlightDek D180 is going to run you ~$4,500 once you pick up the EFIS and the probes, but you'll have everything you need for the most part, depending on what you change in your panel.
Our plan was to go glass with the flight instruments only and then we started thinking about how nice it'd be to have a glass bird. Purely for giggles, it's not needed. So, then we started thinking about an EMS, well we have no desire for two 10" screens in the panel, they're just not needed in our plane, so we boiled it down to the D180, until recent events got us thinking about the SkyView. LOL..
Anyway, if you're willing to do the work, you can get a pretty nice panel, without taking out a second mortgage, I'm sure you'll be able to use some of the other stuff left in the panel as well.
Just to think, all of the modifications we've started in the last 6 months started with the plane on jacks due to a blown $0.35 o-ring. LOL.. It'll be a $5-6K O-ring replacement by the time it's said and done.