Brad, there is no IFR 'certification'. You simply comply with FAR 91....something and install the required equipment.
My -10 is IFR capable with two Dynon screens...an EFIS and an engine monitor. The EFIS is set up so that my "Home" screen at boot-up is split with an HSI on the right, where my nav/approach info is displayed.
I also have an SL-30 for localizer and glideslope approaches and a 430W for precision RNAV/LPV approaches and file as /U.
If you're ever in my vicinity, you can fly my -10 left seat and we'll go 25 miles and shoot a few LPV apps.
Notice the winds aloft from 201 degrees at 18 MPH...it's calculated for you continuously between the GPS info from the 430 "speaking" to the D-100...amazing...even the crosswind component shows and if you study the HSI, you can see the wind correction angle!
Best,