Flaming River is good but more or less a universal fit. You'll have to make the mount work at the floor board. The Ididit direct fit (same as XV) is a true direct fit, but the last time I checked the e-body column is only available with the column key because that's how they were only available from factory. If that is ok, then that column will bolt in. If you are doing a push to start then this won't work. Check the key position also. Some are at the 3 o'clock position some at 5 which drags on your knees. Flaming River columns are stainless and I believe the Ididit are available in multiple finishes.
Most also have options for washer button, etc. on the turn signal lever. For safety check which ones are available with a collapsible column unless you want to get skewered in an accident.
I don't have personal experience with either, but have been looking at the same.
Wes