i just used a pushbike and kept the dog at a fast walk.. no running.
if you do a search for a lure on the net theres a few plans you can find, they are well expensive to buy new if you can find one.
not a fan of any bull but give the lad a chance.... noone really will know what he'll turn out like only time will tell... same as any dog could be a good one could be a dud , just let him prove himself
hope she does ok for you mate, i didnt really want to let her go but i havent got the time to use her as i wanted , anyway if your interested heres her ped & details
http://greyhound-data.com/d?i=1188692&z=3-Jy1L
if you get no joy from the nrgc , i'd suggest ringing the stud book and they will be able to tell you the dogs breeding , when it was born and who bred it.