We do use New English Hymnal. 

I have just had an email from Father McTeer. The hymns are as follows: 

Office Hymn 268 (Part 1) Of the glorious body telling (Tune Pange Lingua) 

Hymn before Benediction 310 We hail thy presence glorious (Tune Offertorium)

Benediction: 
269 O salutaris hostia Part 2 (First Tune Verum Supernum) 

268 Tantum ergo Part 2 (Tune Pange Lingua) 

Reposition Hymn:
296 Lord enthroned in heavenly splendour (First Tune St Helen)