A & C only used the 152 as an example due to the altitude in RSA.
You could always take out a 172/182 here. A & C could supply you with a C152 £40/hr dry. I don't think you'd have to fly all 30hrs in 1 week and you wouldn't need to take a week off work either.
Time off work/Accommodation/Flight or Flights if you have two people going.
As nice as it would be to fly around the coasts of RSA and seeing a different landscape I don't think it would work out cheaper. If I took out A&C C152 I'd take a friend up or a family member and share with them my love for aviation.
Burning 100 hours flying around Florida for 3 or 4 weeks seems like a waste when I could do 100 hours over 2 months here in the UK and sharing the experience with a friend.
Horses for courses.