I was at Surrey History Centre waiting for a document to come from the strongrooms, so I did some quick lookups. Alas I did not have too much time so was only able to grab 4 of your West siblings.
In addition, the West family is included in the following site which lists Richard West as extracted record which I believe but the registers are difficult to read for this period:
22nd March 1795 Richard WEST son of James and Jane West
Anyhow, here are the pics I took of the other 4 I found during a quick look:
14th January 1798 Lettice WEST of James and Jane West
29th May 1792 John WEST son of James and Sarah West
1st January 1790 Ann WEST daughter of James West
1787 James WEST
sorry I didn't go further back to find Sally.