Hi I need some guidance in finding out right training pathway in Pediatrics for me please

Hi I need some guidance in finding out right training pathway in Pediatrics for me please.
1.do we have CT core training in Pediatrics. Which is better training CT or St for an immigrant Dr?
2.what is better entry level for me to pediatric training? I have 1yr post gmc experience from Ireland as an SHO, 2master degrees and 2yrs fcps experience plus house job in paeds?
3.ST 1 criteria says allowed to work in UK. Does that mean gmc reg in general division would work?
4.which deaneries have better working environment for IMG Dr’s in training?
4.what pros and cons should I consider before relocation?
Hhelp much appreciated. Thanks