Hey G'day Joe! Great to see another BSA fan!
I've got a couple of Lee Speeds myself, simply love 'em. Best is a A&N-retailed No.1-pattern sporter with the Harris-patent magazine controller, which is now famous by way of Skennerton's "Arms & Militaria COLLECTOR" No.22, page 30. Funny thing, the previous owner doesn't remember those photos being taken, but he is credited!

Just to whet your appetite, here's a couple I took myself:

If I ever see a Lee Speed in .375 NE offered for sale, I'll call you straight away......

..and tell you how good it looks in my gunsafe!