Paper for Passport Invites.. Help..

[MissBubbles205]

My FI and I have been all over town today looking for paper for our Save the Dates and their envelopes (A6 ones seem to be impossible to find!)  and of course paper for our passport Invites, but now that I have purchased the wrong cardstock after discovering there are different paper weights and different styles (text, cover, index.) I am totally lost! 

 

I bought our Cover pages for our passport invites from PaperandMore.com. I got the Pearl Metallic Cardstock. The other day I realiezed the cardstock is going to be too thick for the inside pages. I read Soon2BeMrsMills forum on her invites and realized she used 25Ib paper, all the local print stores we went to today looked at me like I was crazy when I asked where to find this kind.. And the aisles only seemed to have 25lb in pastel colors. With this being said I found 80lb text weight on paperandmore.com in the same color as our covers when I was about to purchase our A6 envelopes.. Does anyone have experience or more knowledge with this paper? I want to make sure it would be a good quality for our inside pages of the passport invites and not be see-through. Or if anyone can lead me in the right direction it would be much appriciated!!. )