Hi Ian
Welcome to the forum, we have met before years ago on a Midlands Classic Club trial when you were on an Enfield and I was on a CZ. I think my mate also once sold your brother a Commando, small world isn't it.
I like the look of the MASH but gave too much of my money to Yamaha last year for an SR400. Fabulous motor but the finish is terrible. If it can go rusty or corrode it will. Not good for a 5 grand motorbike.
Ian (aka Oldbloke)