Software/Malware Encrypter for Penetration Testing- 1 Week

I do penetration tests for companies, and one tool I commonly require is a crypter. However, I have found that publicly available crypters are no good and get detected incredibly quickly. As such, I am looking for a crypter with features as follows: Written in pure C++ (so as to assure there are no dependancies) Unique Stub Generator File binder (for Social Engineering attack tests) The crypter will only be used for "whitehat", or good-intentioned, purposes. I am a well-respected penetration tester for many companies, and I need to expand my toolset; that is all. I need this project done within a week. The source must be original. I will be requesting delivery of the full source code as well as a binary when you have finished work.