Ha! My cats would put the run on him. Our dog ( a shepherd husky cross) is scared of them, and will whine and cry if there's a cat between her and me. She'll walk around the whole house to avoid one. The funny part is, it's the odd swipe (and they have soft paws, so it's not like it would "hurt") and mostly hissing. I think she met a meaner cat prior to us getting her when she was a year old.
I'm so sorry I forgot to look for the clamp for you. I knew I was forgetting something and just couldn't put my finger on it. The needle clamp part number you're looking for is 172223, I don't have one here, but Richard (souseandsew) has one on Bonanza. I've dealt with him. He's good, if a little eccentric.
He will also have class 66 bobbins for you too BUT, if you can get this stuff on your side of the Atlantic, it will cost you way less! It's going to cost you way too much for shipping. Helen Howes might be able to help you. Tell her you'd like vintage bobbins, and that needle clamp.
http://www.helenhowes-sewingmachines.co.uk/index.html Worst case scenario, I have some things to order from Richard and I can order that and send you bobbins, but I think your money is better spent if you can get the stuff "over there". Canadian shipping to anywhere is just exorbitant.
I remember you mentioned that you're new to sewing, right? Before you disassemble the machine's upper tension, just see what it's current state is.
http://www.archaicarcane.com/fragile...-equal-stress/
http://www.archaicarcane.com/bobbin-...obbin-tension/
I can use almost any thread in my machines (all the ones I've tried have worked, but I didn't like the pre-wound bobbins my supplier sent, the thread kept breaking.), even the junkiest oldest thread I can find - what's wound on the bobbins of the vintage machines I buy - I was using that for practicing my FMQ (and emptying the bobbins at the same time)