I am wondering what kind of MH fixture I should get for indoor use and I am wondering because one of the light fixtures in my kitchen is having some issues and it needs changed. Quick note, I can't use a recessed MH spot fixture in my kitchen because it would be too much work that I don't feel like doing because my house is so old. Would it be possible of I used a 70 or 100 watt MH flood light? Just let me know what suggestions you have, thanks. 

I actually run the 70W SON and 80W mercury vapor indoor and they are way too bright, the only discharge lamps I can comfortably use indoor is the 18W  and the 55W but in wall sconces. For the hps and mercury I don't use any fixture for them, just the E27 lamp base mounted on the ceiling, the ballast and its wires were just a few meters away and also exposed lol I actually enjoyed looking at them and don't mind it.

A 35W metal halide or a coated hps (I think Osram made them, powerball line) would be sweet, but I can't find any in my local store.

I agree with waterbug, you could run pretty much what you want, it's your house after all, but something of a low wattage as they can get very bright.