I agree with others here. Definitely, you should go your own node. It's even better not because you'll be independant, but also from development side. I worked on numerous projects, dealing with crypto daemons and should say, that some forks (ltc, doge, etc.) have same rpc api. So your code may be easily reused. Moreover you can create rpc wrapper, or use an existing one, like 'easybitcoinphp' if you use php to deal with multiple of them. If you have any further questions, consider pm me or wright here, I may advice