Please Help! Buying for fiancé.

I need a little help.
Here is my situation. I am engaged to be married in July. Things are going spectacularly with my future bride. Recently, however, I have noticed she has been.... sizing me up? Im catching her looking between my legs, and she has fondled me a couple of times while I was asleep. I'm not put off. I think she is just really curious what's going on down there. We both believe in withholding sex before marriage, and I also know she would be opposed to me just pulling it out at this stage to just show her.
So here is where I would like help from you guys. I want to buy her a dildo that is extremely close to my dimensions, if not exact. I want to give it to her so she can have her curiosity satisfied. I am looking at these sex toy sites, and while I understand the concept of "insertable" vs "non-insertable", I still have some questions. In penis measuring, the way to record is to get a max erection and measure it from the top along the top to the bone at the base. They call it BPEL (bone pressed erection length). I am not sure how that sort of concept will translate when I am trying to buy, and I don't want to be playing Russian Roulette trying to find the right size buying a bunch of dildos online. haha.
If I described the dimensions, could someone point me to an ideal toy the way I have described?
6.5\~6.75 length
5.2\~5.3 girth.
I need help understanding how that applies with the fact I want the length units I have given to run from tip to base of penis. It does not include the balls, or any extension at the bottom of the toy. I understand if this request is too much, but, truly, I just neither want to buy multiple dildos or research them all day online lol. I am sure there are women who could help me a lot faster, and understand I am really just trying to bring some sort of timing appropriate closure for where I am with my wife in the relationship in regards to our world view.
Thank you all so much.