Crikey Chris! The rate you, and others on this forum, upgrade PE Eagles it seems to me that anyone who has an untouched one has a real collectable. They must be rarer than hen's teeth by now!
I have made sure I have one complete, boxed and untouched set of PE Eagles in my collection. The others I'm modifying are either unboxed or pre-owned obtained cheaply on Ebay - and in some cases already had the bells changed for aluminium.
I reckon I'm getting on for having more PE 12" Eagles than Moonbase Alpha had available now...just need some space to display them all !