Cylinder head crow foot spanner

Hi all, new to this forum, suggested by my Ducati dealership.
I have a Ducati monster 400 (import from Japan, essentially a m600) and doing a full tear down rebuild. Just come to taking off the cylinder head and realized I need to get the special 15mm crow foot spanner. As these are not cheap I was wondering if anyone localish had one that I could borrow for a weekend or something. From North Hampshire.