There is no manual for this particular model but you may use the assembly guide drive. Amp;authuser=0 to the similar model to prevent problems during the assembly. If you have any problems with assembling feel free to contact me and ask questions. Sorry, but I have no example of working code. You will have to code it by yourself.
You need to know that programming of Quadruped much harder than Hexapod. The item "Quadruped Four Feet Robot Hexapod Spider Arduino DIY Robot KIT 8DOF NO SERVOS" is in sale since Thursday, April 5, 2018.
This item is in the category "Consumer Electronics\Other Consumer Electronics". The seller is "gun2kdt" and is located in Kiev, default. This item can be shipped worldwide.