Change Form Label Captions

According to this post, it is not advisable to change the standard label captions in NAV. But this is to be done in our application. We are using NAV 2009 World version, and the requirement is to change the "(LCY)" text to "€" (Yes, we can use the European version for this, but we have to use the world version).

One another requirement is to change the "Vendor" string with "Supplier" in the whole system.

What is the most easiest and hassle free way to do this?

1) We can change the "Caption" in the table and that change will be reflected in the forms. But many times, this isn't the case, as many captions are attached to labels on the forms. So, we also have to check the forms for that word (and this is a very big task).

2) Another way is to make use of the CaptionClass property as has been discussed in many posts here.

Any help will be appreciated.

Thanks,
Kirtan.