The Metropolitian line download is avaliable on the archive of Trainsimcentral website
This is Aldgate to Finchley Road is here Or here Works with BVE2 and BVE4 (note brightness on the cab is not avaliable on BVE4)
The Baker Street to Chesham is avaliable here http://benobve.110mb.com/bve.html
Note: the objects are not real on this route. Works on BVE2 and BVE4
The Chesham Shuttle can be avaliable here Only for BVE2
The Uxbridge to Harrow-on-the-Hill is here
The A60 stock can be downloaded here.
