Scrounger - What size ??
I have a spare set in good condition, going cheap as I need the wardrobe space. 40" chest, 32" waist. Currently ranked as Plt Off. Happy to post them out for someone to try on, as long as you post them back at your expense if they don’t fit.
No1 and 5 jacket are 96R. I’d say trousers for the 5s are a 30R but not 100%. No trousers for the No1’s.
Both ranked to Flt Lt.
Thanks, but too tight I’m afraid 
Mine (tailor made by Goodalls, £600 back in about 2008) don’t match anyway - the jacket is a brushed soft finish and the trousers are more like no. 1 material (but no. 5 cut i.e. right up under the nipples)
No5s from Goodalls is now £1250