Probably for the best, I handled an A900 and only made it out alive as I convinced myself I needed the 24-70Z to replace my 28-75 and so could not afford the combo

Lots evidence in reviews, including David's, that 28-75 is a great lens on the A900 since, but at least I did not know that at the time!
Thanks for indication of the prices, the 85 and 135 seem to be pretty fixed everywhere, which is why I asked. T5 Sony place is temptation itself, they had everything when I was there in the summer, I think I tried the 35mm G and some TC's before the wife realised the cost dangers and dragged me out!
@Dr Harout, thanks for the welcome, I thought I had already posted but perhaps that was a comment on the main blog/website.
Having done some soul searching I am planning on trading up from my KM 5D to probably an A700 with the 85 Zeiss rather than an A900 now, and plan to go full frame a bit further down the road - hence my interest in the LHR prices.
135 seems great as well, but I am leaning towards 85mm myself as I think its possibly a better option on full frame in the future... maybe...