Could I ask you a question: do you want to develop private blockchain or public blockchain? If you want private blockchain, I suggest to try hyperledger. If you want public blockchain or ICO, I suggest to try ERC20 Token standard. Also you could hard fork bitcoin. I am an expert on Blockchain and cipher. I develop the projects about ERC20 Token standard, Bitcoin, and Hyperldger-fabric. I have over 10 years hand-on experience on C/C++, Python, and JavaScript. If you have any issue, please send me a message. Thanks!