I'm with Cinders here. I've only been a bit-part reader of this thread so forgive me if I've got it all wrong but my reading of this, shared with others I suspect, is that you have obtained an absolutely classic but incomplete rifle. A bit like falling onto a V-12 E type that's missing the wheels and tyres and some of the body panels. But you want to fix it up to complete on the cheap. Not just the cheap, but cheap-as-chips cheap. Well, you ain't going to do it that way I'm afraid to say. You gotta speculate to accumulate! Start by getting a commercially made bracket from England. If they were good enough for the UK MoD to refit our rifles, then they're good enough to fit yours too. They ain't cheap but genuine E Type bits ain't cheap either
As it is, a No4T rifle without a telescope and bracket, even with a fake telescope and bracket is basically just a No4 rifle. Just like a Taxi without a taxi sign is just a car!
Anyone else..............