Here is a link to play around with.
http://www.equinox.co.za/unittrusts/funds/fundresults.asp?func=perfClick on "Performance" and chose "5 Years" as you would want stability.
Take note that Coronation Industrial Fund was 20% this year but averaged 40% pa the past 5 years.
Also note the "Risk Clock" top LHS for every UT. Yours is moderate to high. Not bad.
Not sure about your situation. Are you emigrated from SA or never been a citizen?
In my case, I emigrated so pay no Capital Gains Tax to SARS if I sell now.