Yes that's enough for both those crops or most any other.

How about one of the native deciduous azaleas? The evergreen Rhododendron Cadis also is reputed to be sun tolerant. Mine looks good under similar conditions as you described, but is too small to bloom. Here is a link that might be useful: ARS description of Cadis

Thanks Steve! Funny that you're waiting for Global Warming to plant citrus - I live in the mountains 40km from the beach, and I'm waiting for global warming to turn my house into a seaside residence! Haha. Thanks for the info, I will put them in there and see how they do. I feel more confident now. I have also chosen full-size rootstock so I think the tops of the trees will get sun, but the smaller varieties like the Blood Orange and Kaffir Lime will still be shaded. Doesn't really matter for the Kaffir Lime, I only plan on harvesting the leaves on that one anyway. Unfortunately the eucalypts are on my neighbour's property. Even if they were mine, topping them would cost many thousands of dollars, so I think it's just easier to plant appropriately for the site. Living in the forest, I have a lot of shade to contend with, and it's a big learning curve trying to find out what thrives in those areas. Thanks again :)

all plants need sunlight ... usually ... when a plant is said to be a shade plant ... it is really about whether the plant can pump enough water.. during the heat of the day .. to survive ... if the plant can NOT ... then it tends to be called a shade plant ... a great many plants labeled as such.. are shade TOLERANT .... the best example of this.. is that ALL hosta in Britian ... are considered full sun plants ... and most the british authors claim such ... there are two reasons for this... the first is that they at at 60 degrees north ... the actual sunlight is considerably lesser in intensity that far north ... compared to most of us in the states.. that are 45 degrees north and less [there is a highway sign in the middle of MI that says we are half way to the north poles .. 45 degrees] .. and this is one reason.. the brits are a rather pasty peeps.. lol ... you probably couldnt tan there if you wanted too ... lol ... that said... they are also subject to a lot of cloudy weather ... so that even if they plant in full sun ... its rarely ever out.. lol ... here in the states ... anywhere north of the mason dixon line.. hosta can be full sun plants... especially if your soil can hold enough water during the heat of the day ... as compared to say.. my sand ... the only thing that happens... is that they can start looking ratty ... earlier in the season .... many of the northern wholesalers ... in fact.. field grow them in full sun [or used to anyway] ... to increase the root masses.. as they really dont care how they will look at harvest .... on the opposite side ... many of the full sun plants ... are the big flower plants... and if you are going to burn all that energy.. to produce giant flower displays ... you arent going to be growing them in shade... the best example ... is that roses ... the big hybrid Ts ... will not thrive in the shade ... mind you.. they wont die.. they will just grow more green leaves.. rather than flowers .... when it all boils down ... its not really about what the tag says.. or some resource ... sun .. like many other variables.. is a micro climate issue ... subject to soil.. location ... watering protocol.. etc there!!! .. more than you ever wanted to know.. lol ... just try it... and let us know.. how it works out in your garden .... ken