I would not advise to do serious business on the cheap, unless you intend to sell cheap products such as balloons or popcorn.
You may also want to register your product and brand. I can recommend patent attorneys Adams & Adams. They have specialised divisions that can deal with your type of patent or industry and can offer advice on further registrations in foreign countries. They are not that expensive, initial R5k-R10k depending on the type of service you require. Registration in the USA can be R80k to R100k or more and then you still have no guarantee that they will not change a small feature and call it their own. Kreepy Krauley had many legal battles in the US which has different laws & applications for its 51 states.
If you want to play with the lions, you must act like a lion!
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