So, what's the current disposition of these units then?
I make it as follows:
701001 - nowhere to be seen
701002 - Stored Worksop
701003 - Stored Worksop
701004 - At Wimbledon
701005 - At Eastleigh
701006 - At Wimbledon
701007 - At Eastleigh
701008 - At Eastleigh
701009 - Stored Worksop
701010 - nowhere to be seen
701011-015 - At Eastleigh
701016 - At Feltham
701017-019 - At Eastleigh
701020 - nowhere to be seen
701021 - Stored Worksop
701022 - At Eastleigh
701023 - At Eastleigh
701024 - Stored Worksop
701025 - At Eastleigh
701026 - nowhere to be seen
701027 - at Litchurch Lane
701028 - At Eastleigh
701029 - At Eastleigh
701030 - nowhere to be seen
701031 - At Eastleigh
701032 - At Eastleigh
701033 - nowhere to be seen
701034 - At Eastleigh
701035 - At Wimbledon
701036 - nowhere to be seen
701037 - En Route to Eastleigh
701038-060 - assumed unbuilt
701501 - on test, Old Dalby
701502 - on test, Old Dalby
701503-505 - at Litchurch Lane
701506 - Stored Worksop
701507 - nowhere to be seen
701508 - at Litchurch Lane
701509 - at Litchurch Lane
701510 - Stored Worksop
701511 - Stored Worksop
Do let me know if I've got it wrong! (I probably have

)