Fitted and not a problem blows down.
Wire cover unbolted but the tin shroud is held by small cross head screws and they just would not unscrew. Could not get a drill in the drill out so got the angle grinder out (any excuse my favorite tool!), and hacked the supporting arms to the original fan off.
The new fan is an all plastic housing and I placed it in the hole to see if it would fit. Well it fitted so well I could not get it out without fear of breaking it! It is not quite sitting flat but it stuck solid, I cable tied it in place not that it will move but to insure it does not fall onto the rads with a spinning blade!
Fired up the A/C and it is icy cold once more, front, back and cold box, I'll still get the system checked and recharged and let you know the gas weight.
The fan cables I got it wrong the second set do go off to something else so ignore what i said before.