Swing Axle, TIV, 40 series tires???

[GRMNLK]

So I did some searching and found alot on 901 boxes and other porsche stuff (interesting reading) here on GL. But I have a couple unanswered questions.
I'll be rebuilding my '63 S/A trans. and will be hooking up a 2.4 TIV to it, and I'm running 205/40/17's. My gear ratio is really bad in the city, I'm usually cruising in 3rd gear at 35-40 mph, and horrible on the freeway....4th gear at 3,600 rpm is about 65 mph.
So I think 1st and 2nd are fine but want to widen 3rd and 4th so I can cruise around 75 mph at 3,500-3,800 rpm.
I'm curious as to what gearing you guys are running for freeway speeds with 40 series tires and big motors? Thanx

***
Well after some more searching it dawned on me to check Jake's site. I found out some useful information, I'd like to get the stage "C" kit but not for 1,599.
I need a hopped up stage "B" kit, but not quite a stage "C"
http://www.aircooledtechnology.com/Home_Page.htm