Caminetto and Savinelli are different pipe brands, but there's a connection because Caminetto's founder used to work for Savinelli. Pipes with both names can be found. The white mustache on the stem is a signature style. Do some more research for authenticity.
I haven't heard of the Big Boy brand before, but it sounds like it was a good smoker for you. Maybe try checking out some vintage pipe forums or even asking around at local tobacco shops in Pittsburgh.
When I was on the hunt for an affordable one, I checked out some online smoke shops and local tobacco stores. You can often find good deals there. Also, keep an eye on sales or discounts – you might snag a great deal.
It's frustrating when something you've been waiting for comes back in stock, but your wallet isn't cooperating. Maybe you can start saving up a bit each week, so when you're ready, you can snag that pipe.