Thanks for all your help with this.
I went to Dave Mellor Cycles today, our better lbs and they thought immediately it would be fine so I had a bike fit. Everything good and they just had to flip stem and I'm going to change the bars from a 44cn to a 42. Here are some pics
Looks fine to me, young man... Enjoy your rides, and on those lovely, sunny days in the country, think of your FIL and say a little "thanks".
You'll even be carrying bits of his DNA in the bar tape, so he'll be on the ride too, in more than just spirit
My FIL has a De Rosa... I think I might wind up with that soon, but thankfully he's in rude health generally (but his knees aren't).