Yes, the GS bar will show up when you connect to a 430W via the HS34 / ARINC 429. I've flown behind that exact configuration.
As for delayed orders- We've shipped any order that was placed with us on January 2nd. A long time ago. We've shipped any order that is more than about 12 weeks old.
N661DJ, as you know with your order, while you paid the dealer in January, they didn't actually place the order with us until mid March. We then shipped your unit to them last week, so you know that you already have it. This was within our stated backorder as of the actual order date of mid March.
We're sorry that the dealer didn't treat you as well as we would hope, but we can't ship an order that we never received. We also don't know to what individual customers dealer orders are going to, so we generally always have to refer you back to your dealer for actual lead times, since dealers may have ordered in advance of your order or may have other situations.