[Fontinst] How to combine just one extra letter from another font

[na199 at gmx.de]

Hello,

I have the following problem:

A book will be printed with Times typeface. 

As known, the letter "v" in Times in math looks very similar to the greek "\nu" 
and both letters appear quite often. 

Therefore the idea is to replace the replace the "v" with the rounded version 
from the NewCenturySchoolbook typeface (I found nothing better) - but not in 
the upright fonts, only italics.

This might have been done before with times font or similar. Question: is there 
a script or sample available which would help (I have no intention to invent 
the wheel again). 

Regards
Henning