That grey certainly shows more of the detail up.
Thanks for the offer of the etches, but having had another look at the body of the 70 there not as many vents and those that there are, are much smaller than the ones you have replaced.
Thank's for the advice on windows and painting, I was thinking of using glue and glaze for the windows but the body will have to be sprayed with rattle cans as I don't have an airbrush. Just need to find a suitable match for the southern green that was originally applied.
Thanks
Nik