I think that sounds great! I would just make sure your actual substrate temp is between 88 and 92 and your ambient temp is somewhere around 80 - 90. 55 Gal are tricky to get things right, but make amazing terrariums for adult BPs if done right

You could even make a vivarium out of it if you want to get fancy. Just don't put anything aquatic in it or your snake will probably eat it...or it may die of fear hahah

Good luck!