2022 HC under-carriage upgrades

[182flyer]

2022 HC 295RL Sold our 2013 Mountaineer and purchased HC last September; spent five nights staying close to dealer for check out and HC has been sitting since. Read opinions on this site so looked and some issues are: 1) switched out tires for Sailun G rated immediately 2) suspension wet bolts-2022 295RL apparently has all wet bolts 3) measured "wheel well" area for adding heavy HDPE liner and noticed not a typical wheel well. Tires already throwing mud on slide-out gears; a Valterra blade drain and levelers including wiring.

Appears mud flaps are definitely needed in front and back of tires. Anybody have any opinions on this?

Thanks
Jack