I'm currently renovating a 1930's house.I'm working on the dining room and kitchen at the moment and have noticed that on the wall with the door frame, there is very little depth in places to allow for plaster board .I've had a couple of quotes and have been advised to increase the depth of the door frame all the way around to allow for plaster board. Originally the old horse hair plaster was very thin in these places taking out the discrepances in the brick work. The wall could be wet plastered like the old one but would it be more likely to crack?or should I go with the advice to alter the door frame?