For me I just ordered the following...

https://www.midwayusa.com/product/1004714413?pid=861850

https://www.midwayusa.com/product/1005123911?pid=865680

https://www.midwayusa.com/product/1005122611?pid=761587

I only ordered the firing pin because I had a large pin and in my research knew I would need it when going with the PTG. First time doing anything like this, so what do I know.