Alright, I'm back now.
If you'll look at the photos I linked in the thread you will see what has to be modified. Its reall small but you might can see. Maybe my monitor is setup different than yours.
Below is a list of the only after market suppliers, I know of that offer a steel timing chain guide for the DE-decked 22RE.
And they all seem to be modified in the manor I am suggesting.
LC Engineering Notice the elongated hole in the straight or "tension" guide.
DOA's Notice the tabs cut down a little bit so that they will fit where the head overlaps w/ the engine block.
I did not have this problem but I think its because I used a thick gasket.
Also notice the elongated holes.
This pic shows the 22RE timing cover. A 20/22R is deeper and will allow the guides to fit unfabricated. The two timing covers are different
(see the heat mark from the cutting?)
But like the post I linked with the part #'s, its up to you weather or not you want to fabricate them or buy them ready to go.
The width of the guide is the main problem. W/o cutting the guide down along its back, the cover will not bolt to the block.