The G & E classes.... E421 & E432 at Downpatrick, and E428 at Dunsandle. None in working order, though the pair at Downpatrick, E421 in particular, are very much restorable. E428 would require a great deal more work, as many bits are faulty, broken or missing - one major part which is beyond help and would need to be replaced was priced at £5000 sterling about 20 years ago.
G611, G613 and G617 are at Downpatrick, with G617 in working order. Again, the other two could easily be fixed up; time, manpower and money permitting. G613 is owned by the DCDR, the other two by the ITG.
G601 and G616 are at Carrick, neither working, both ITG-owned.