Yus pwede as long as naka .rar file yung manga na idadownload mo. Try mo sa mangapark.me, mangafox.com magdl, di ko lang sure kung downloadable manga nila hehe
pwede po kasi may nagshare noon dito ng kanyang manga commplete episode (softcopy). at na download ko yun using IDM. but I cant answer your second question. di kasi ako mahilig sa manga, anime kasi mas gusto ko.