Ducati bevel swing arm bushes

Hi all
I have a 1978 gts 860 cafe racer. i have just replaced the s/a bushes and pin so now it needs reaming, do i buy adjustable line reamer with extension pilot or is there another way of doing it. I’m based in london so maybe you know of somewhere i can take it to have it done which would be more cost effective as im unlikely to use the reamer often. Thanks for the help.
Regards Johnny