No paper into tank can help greatly. My toilet drops into shallow end of tank, seems only about an inch+/- clearance between end of downpipe and bottom of tank. Unsure if I cud pull pipe and shorten any without causing issue. If I could, wud help immensely, I am sure?
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10