What's a Budget radio for a 1967 911

[Fleming]

I'm a neophyte for anything audio so I'm looking to the experienced guys to give an opinion on a radio for a noisy old high revving 911. For cross country trips a radio is essential.

The ideal radio would be good sound from the smallest package (read - light weight). I'm spending a lot of time and attention to get rid of weight in the car so I'm not looking to add pounds in speaker magnets, if you know what I mean. It's got to be heard over a (slightly louder than stock) exhaust.

As a starting point a budget for the radio (under $150) such as a Blaupunkt Montreal
(or something comparable) it has a built in amp with 23 watts, and it has a less complicated face to (somewhat) match the simplicity of the car. A CD player and the possibility to hook up an Ipod would be good, too.

Speakers will be in a 3.5", 4" or 5.25" size. I'm not looking to cut up the door panels so a alternate location of mounted under the dash or in the kick panels is being entertained. Budget is under $75.
Starting point is:
Rockford FRC4205, 5 1/4" 2 way, 2-25 watts ($60)
or
Audiobahn AS40Q, 4" 160 watt ($30)
or
Rockford FRC3205, 5 1/4" co-axial ($30)

Smaller is better for installation into a tight area.

Would this combination even work? Would it make anything better than just noise?

Anybody have a recommendation for other products to get to these goals within this budget?

Thanks,
Bob

[widebody911]

"Budget?" Sapphire IV, and it's period correct