There are Lifestyle RV owners groups on Facebook and other RV forums, those might be helpful. As I recall Lifestyle RV was part of EverGreen RV that closed down pretty fast, that's going to make it hard as many RV manufactures don't even publish their diagrams and most manuals are a complication of various parts manuals. So your best bet is talking with other owners.
Two Wire Fox Terriers; Sarge & Sully
2007 Winnebago Sightseer 35J
2020 Jeep Gladiator Rubicon