So I was going for blessed shield build but I do not have the items needed to make it atm.. What's a good build I can roll with until I get those items? I almost have the invoker set. Is that something that can hold me over and get done what I need done to get those items? Or is there a better way?

invoker works well, just it isn't as strong as LoN shield build.
you could finish it with headrig gifts and last part will arrive pretty easily.

get all ancient item for cap amurica build won't be extremely fast so it's good to have a solid base