Rebuilding victoria

So this pickup has an r12 system still but the odd thing is the high side valve seems to be smaller almost tire valve size. The line is blown anyway so two questions can I get a new line with the standard size Schrader valve ? Or do they make an adapter that fits the smaller valve size if anyone has a link or an idea on this it would be great I’m not an ac pro by any means and my old Yota didn’t have ac so first time dealing with problem. Also it has quite an angle so even if my gauges did fit I’m not certain they would actually connect thanks in advance for any help.