Thanks for the comprehensive reply. It seems that I need the SVA one at 100 Degrees. Thanks

Just thought I might resurrect this previous post of mine as I am now at the wiper stage. In the end I bought the windscreen pack from Findhorn as it included all of the extras and by the time I had sourced them it would've cost nearly as much as the pack. The majority of the cost is the windscreen anyway.
I have been studyinhg the wheelboxes and as Dave mentioned above there are different wheel boxes for different MG Models. I spoke with a chap at Moss London (Very Helpful) and he went through the differences. The GT ones have 1.75" spindles whereas the Roadster ones have 2.5" spindles. As my donor was a GT it has the 1.75" ones.
Unfortunatly the bezels and bushes seem not to have a flat angle between them. It appears that the GT scuttle where the wipers come through is profiled. Obviously the NG TF scuttle is flat.

My question is do I need the longer wheel boxes from a Roadster and does the roadster have flat mating surfaces ( albeit at about 45 degrees). I have asked Findhorn and am still awaiting a response.

Thanks in advance.
Pete