I usually use either Lee filters or Rossco filters.
If you go to the Lee website:
and select 'index' in the upper right corner, you will get a list of all their products, including a list of all their various filter colors in order by color number. Bastard amber is color number 162. If you select it, you will get the technical specs and a sample of the color (the 'pinkish' vertical bar between the two charts). That's what the filter looks like when viewed against a white paper. I just checked it against a sample in the Lee Swatchbook I have here and the online version looks pretty accurate.
I don't think that filter will get you what you want. You might try checking out some of the other colors but the only real test is to try it out and see if you like what you get. I've been trying to simulate candlelight for years and have never really found exactly what I want.
The Rosco website is also pretty good. You can find it at: