Rob the first release of the (converted for use with MK11A,B,C,) Dutch Vans from DC Kits had a MK1 type gangway fitted to the models. The prototypes were fitted with MK111 gangways. Pats link to the (correct for MK11A,B,C,'s) DC Kits model is of one of the first releases. I don't know if they corrected this on further batches. To add to what the lads have said MK111's only ever ran in service with MK111 EGV's, unless there were some loose coupled movements inside Inchicore.
The Dutch Vans converted were
4601 formerly 3162
4602 formerly 3163
4603 formerly 3166
HTH
Rich,