I have seen many solutions - but thats the first with lead - crazy
You are wright - it is easy to bend Glass but sometimes you will burn your fingers - haha
I use only Silicone Rings - that works perfect.
Looks perfect now - only the handle should be from black wood not brass.
Arnold
I use homemade sliced silicone rings between the red plate and the boiler and tiny o-rings on the screws (between boiler and cover) and paper gasket between screw head and cover.
That little brass handle gets hot