Hello Mike - the E24s are well known as a strongly built boat - see prior seabreeze thread here..........if I recall right one sailed across the Pacific or further but of course top shelf sailing and preparation is needed for that. Reg Gardner and Len Hedges the builders / designers knew what they were doing. Reg went to the UK with an early boat and did well in the JOG series over there.
www.seabreeze.com.au/forums/Sailing/General/endeavour-24?page=1Also if I recall a prior thread here the rudder was over balanced - so the rudder stock was too far aft of the leading edge of the rudder and didn't give a good feel especially sailing upwind. I had a Black Soo 30ft Van der Stadt with the same problem and angle grinded off the fibreglass and stainless steel straps fwd of the rudder stock to get the balance right and it was fine after that. But a bit of unexpected work.
The concern of lack of interior photos is easily rectified by you going to inspect the boat if you are a serious buyer.
How old is the standing rigging? Will you get comprehensive insurance?
The E26 was a lot better boat and many examples come up in this price range - albeit condition unknown and probably with an outboard.