He dealt with that in the first chapter
While senjutsu is very versatile if used correctly, he can already do what senjutsu can do using his Aura. And the fundamental thing about his powers is based on his life force, he can easily manipulate it at will.
In DxD as Raizel
Anime & Comics · True_Noblesse
About 52 million square miles(amazon times 20) pangea was 57.2 i think
The trees in Rei's dimension were a hundred times bigger than the trees in Amazon Forest and the forest in Rei's dimension was twenty times as big as Amazon Forest. As his dimension slowly grew, so did the forest due to the overabundance of the nature energy and somewhere along the road, it became as big as an entire continent, full of massive overbearing forest.
In Naruto: Reborn with Talent
Anime & Comics · KasiCair
Same
Vice Principal
Harry Potter: Card Drawing System
Anime & Comics · RyoPath
Google says the avg horse and buggy go 5-8 mph(8-13 kmh) so it would take if they are traveling for 12 hours a day 19.417 days to cross that distance at a constant rate, if they are traveling at 5 mph(8 kmh) it would take 31.068 days to travel in 4 days they would have to go between 38 and 39 mph(61-63 kmh)at a constant rate for 12 hours a day
They traveled at high-Chunin speeds for a while before they had to slow down to normal Chunin speeds, the distance between Suna and Konoha was around 3 thousand kilometers and they could easily make the journey in 3 or 4 days depending on how much rest they had, with Naruto taking guard duty each night the rest of the team could get proper rest and made traveling easier.
Naruto: the gamer system
Anime & Comics · Washuru