well if i was you firstly i would get a give away greyhound around 18 months to 2 years go to races and talk to the other trainers and owners.
one thing that i find is public trainers hate people that dont care about the dog and just want to palm it off to the trainer without having input .
rear it yourself break it in at a break in center about 400 dollars and train and race it yourself
people race greyhounds to keep the dog and themselves happy
not for money
if u get a greyhound its a 24 hour a day 7 day a week job and every greyhound can get to the track and win its the time effort and attention that you personaly put into it.

if ur not ready for 100 percent comitment than dont get a greyhound