Where is somewhere to go get a bimini for my 79 challenger

hey chuck go to inland boat center in perris its the old super kmart of the 15 i paid 320 out the door for my mine white made out of the sunbrella material and all the mounting hardware they have what ever u want in stock the hole back wall is full of bimines only thing i had to do was cut a little out of the legs it was to tall for my taste but works bitchen for the fam 951-928-4180   

Sunset Marine on Broadway in ElCajon has a couple in stock. Make sure you get all your measurements before going in there. Or you could ask Joe at JP Marine in lakeside.

So where do you find out how to measure for what you need?  My Miller came with one but I think it was meant to go on a boat about a foot wider than my hull.  Now for the length and height.

Length and Height are both personal preference. The width is the one you need to measure. Steering wheell to scoop sounds good to me.

Width?

Beam of the boat.