The harvard is not the best choice for time and money investment; you'll be breaking things all the time, it will let you down, and severely limit your skills. It is what it is, and I hope you're loving the game just the same. Just be aware there is more to the game than a awkward table.
If you are looking for sloped corners maybe look for a dynamo smg, warrior, fireball itsf smg, or maybe a TS? These can be found used for not much money and all are a superior table worth the effort and investment.