Lynch Hung is right. The NES was a good system, as was the SNES. Don't mod them........If you wanted, you could ship it to me and I'll do the very best mod you can to it. The you-fell-for-this-trick-and-are-never-getting-it-back mod. It rocks
See if you can buy a brand new one with that money and keep it in good condition. Don't forget that the NES is a big part of technological history and in many many years it will be a very good thing o have.