The Riding Turtle was originally simply for looks. While mounted on the turtle you move at normal running speed, though you are actually mounted so effects that affect run speed do not operate but effects that affect mount speed do. This mount can be purchased through the Black Market Auction House.
Here you can buy Riding Turtle for EU or US Servers.
You'll get guide for getting Riding Turtle
You'll be able to get Riding Turtle
Additional budget for Character transfer or Character boost to max level. BMAH Services in Shadowlands now requirement to have a max level character on server, so Trial character will not work.
Free time on evening, if you choose selfplay option