I have shared this before taken from a glasgow based trader on another forum :- An understanding girlfriendRent of a yardAutotrader bill £850 a week Ebay motors billGlasses guideTrade insurancetrade platesBuisness insuranceMagazine advertstaff (i have 4 and i need them, i couldnt do it without my 2 right hand men who basicly orginise my life for me)2 x mot stations to use2 x paint shops to use2 x auto electricians to use2x repair garages to useA diesel specialista good scrap yard your friendly withMerchant services Your own transporterCCTV EquipmentOverflow space - as someone said for me to have 120 cars ready to retail i need another 30 getting prepper and 20 sitting in hand over zone i also have a dead zone for cars i want to forget about haha )Credit consumers license for financetrade acounts with bca, manheim, central, sma , interstty and good trade sources for cars, Its easier to sell well prices cars justnow than it is to buy them.A good accountant.a good selection of toolsA snap on booster pack, nothing else cuts it for me.Your own diagnostic and battery recharging equipementA complaints procedurea warranty company who will actually pay out.Friends to help youA decent internet provider as autotrader dealer edit needs it.A firm but fair attitude, the public with try take the piss out of you at any opertunitythats just the basics i can think of there will be tons more, Good luck with it.