Was in a very similar situation with EBS. Had a good relationship with the clerk in the ESB office which was very important. The assessor in HQ was very particular about a possible change in employment, looking for proof of qualifictions etc. In the end I had no doubt that they would give the loan since, IMO they are not writing as much business as the other banks and are mad for business. Instead of a two day turnaround we had two weeks of nail biting.
Just think carefully about what you tell them. Keep your cards close to your chest, keep it simple.
Hopefully the timing works for you, but as soon as they cheque issues your a free man to do as you wish, and they don't care anyway as long as the monthly payments are made.