Will be buying Deutschland Ticket later but including cost of that, got Mannheim-Augsburg, Augsburg-Munich return, Augsburg-Ludenscheid, Ludenscheid-Leverkusen, Leverkusen-Cologne return, Leverkusen-Stuttgart all for about £140. All long journeys with a seat reservation. Travelling through France (from Guernsey by boat) so need to get the trains into and out of Germany later but very happy with the costs so far.