Ok here's the deal..me and my wife bought a baby ball python two weeks ago, Ive Decided to build a big enough cage that can be it's perminant home. I built this thing out of MDF board and lined the inside with a stone looking linolium with four 3 inch circular vents. Now this is my first snake of my own and i bought a heat rock the same day i bought the snake not knowing that it was a "Big NO NO" but before i found out it was a no no i set the tank up laying the heat rock on top of some subtrate and and then covering it with more subtrate..right now the snake is still in a little pet container while i get this situated, the temp is at about 75 at night and 80 during the day... but i know thats not good enough yet...now im seriously thinking about changing the heat rock to a heat pad but im worried about it getting hot enought to melt the linolium or burn the wood...is that possible? what do i do? also the humidity stays between 50% and 60%...is that ok?

here are some pictures of my set up..i still have to buy a hide rock,but maybe someone can help me with this issue