If I were you I would see what you could do with your original levers.
You could strip and polish them. A few 'lightening holes drilled in appropriate places could bling them up a bit.
Its an all or nothing thing, lose the whole lot, or keep the whole lot.
I have just gone to choke pulls make out of a couple of push bike spokes - shortened. And a couple of cable clamps and washers.
Now what to do with the choke lever? I just pulled it off and put a 41mm diameter brass cap, secured by original bolt, currently. Its going to be fettled as it still looks a bike odd.
You could also legally lose your front brake light switch and associated wiring. MOT rules state that all bike after 1986 have to have a front brake light switch as well as back. Tony's bike does not have a front brake light switch as a result. My R100 is 1982, so I am considering this. If you leave anything behind that indicates that a brake light switch was fitted, you might have some explaining to do to the MOT man, so remove the switch.
I have lost my Kill switch as well, it had stopped functioning reliably, and stopped the bike as a consequence. I removed rotary switch and smooth and filled where necessary. I used a screw head cover over the hole.
Although I have run a bike without indicators, its not something I would recommend, especially since you are from 'that London', and every drives like a c*nt there.....
If I think of anything else I will let you know.
Cheers