Hello everyone, 
I'm Vincent from Belgium. I'm 15 years old and just bought a car (Volkswagen t2b). Me and my dad are going to restore it together, but I want do do the interior myself to save money and do it exactly how I like it. I already went to big leather shop to buy a smal piece of leather to practice to recover a steering wheel from our other VW bus. So far it is working out really good, but the handsewing is a real pain if you think it could be so much easier with a good machine, so now I'm looking for one. 
I already knew that I must look for a walking foot model with triple feed, but many people don't but the type of the machine or a good picture of the foot with their add. So could you help me? 
Here are 7 ones that are probably within my budget. (If I know the type I will put it above the picture). Witch one(s) do you think that are suitable for me? 
Pfaff 142-6/2B 
 
 
 
 
Global wf 955 
 
Singer type 211 G156 
 
 
I also have another question. Could you us a double needle machine with just one needle? 
Thank you very much!! 
Greets, 
Vincent