I wasn't asked - I commented unprompted! :-) I simply advised Jack that his, then, 1408 should be LH drive so he changed it to 1405. And, superficially it had (and still has) a 4000 gal tender with turned in top. BUT what I didn't spot before is that Jack has put his spare 4000 gal body on the underframe of a 3500 gal tender. And, of course they are very different ie no cut outs between the axle boxes with the 4000 for example. So, if you want a 1400-1406 series N you need to source a whole 4000 gal tender, Jack. (or acquire a complete 1400-1406 N - Hattons want £131 for a new one but they have several from £47!).
Chris KT