Here's the situation: My retired parents who are in Malawi, Africa doing humanitarian work were recently robbed and their point-&-shoot camera was among the things stolen. They have asked me to find a good camera for them to use when they take a little time off to visit some of the game preserves in the area. They do have a 2nd hand cheapo PS camera now for taking pictures of people, and things up close. My parents are not photographers, nor are they particularly tech savy. What they want is a camera with enough reach to take pictures of wildlife as they travel around the game preserve. My Dad estimates that what he is looking for is to be able to get a reasonably close picture of a kudu or a hippo from about 200' away. They are not especially wealthy so a setup like a 7D and 100-400L is unfortunately out of the question. They just want to be able to take good pictures of the amazing wildlife that they see when they go out driving.
After talking to them it looks like their budget is in the up-to $600-$700 price range. Currently I'm debating between a new good quality point & shoot like the Canon SX150 IS because it has a 12x zoom (28-336mm equivalent), it is compact, and is easy to use. This option is less expensive, but would hopefully give them much better reach than their 2nd hand PS that has a 3x zoom. Being a compact camera also makes it easier for them to carry with them without inviting undue attention from unsavory individuals.
The other option would be a Rebel with the 18-55mm & 55-250mm lenses. I think I can do the Rebel kit for around $600, or maybe even lower if I'm lucky shopping Kijiji for 2nd hand equipment(Craigslist isn't big in my area). This option provides slightly more reach, but is way bulkier. If they go with this option the camera would primarily stay in their appartment and only go out when they go sight-seeing because of the probability of being robbed again in the future. As for use, I highly doubt that the camera would leave the green mode, so the extra features of a DSLR are not especially needed.
What I'm asking is for feedback on the options I've come up with. I haven't used a PS style camera for quite a while so I'm not certain of the quality, and if it would be sufficient. Does anyone have any other recommendations in their price range?