I believe their husbandry is similar to Corns as they are both in the Rat Snake family. I think the Lucy's like it a bit cooler though, so high 70's / low 80's for a warm side. I like to use UTHs (Under-Tank Heaters) for a heat source as I find they are better at providing belly heat for digestion, but others use heat lamps with success as well, so whatever works for you. UTHs should be regulated with a thermometer and rheostat/dimmer, or a thermostat as they often get way hotter than required.
Aspen is probably the most common substrate, though you could also use newspaper or paper towel. By fake grass do you mean Astroturf/repti-carpet? Some like it, some don't - an online search should yield you more info, pros/cons.
As Rob stated, a hide at both the warm and cool side of the tank along with a water dish are musts. After that, tank decorations are personal preference, though if you've noticed that s/he likes to climb a branch would be a great addition. I like to place a branch wrapped with fake vine in all my enclosures.
And, of course, you must post pictures asap