There needs to be some understanding of what players are realistically going to be available from the NRL in terms of potential incoming forwards to Leeds. Along with half backs props command the biggest salaries in the NRL. As such the ones available will be one of the following. Top quality 33-35 years old looking for one last challenge or pay day Eg Burgess and JWH.
Young not played much in NRL looking to build career and get an NRL contract. Eg Tom Amone.
Late 20 early 30s not a first choice starter but played decent number of games looking for 3 year contract and more game time.
Leeds should be in for either of the second 2 and its then its about selecting the right players with the attributes that you need.