Pros and Cons of Narrowed Beam vs Widened Fender/Wing/Guards

[matara]

Living in Australia, its going to be very difficult to get hold of some widened front fenders/guards/wings. I've found someone that does the rears which is good, but seeing as there are no glass fronts, and I'd probably have to remortgage the house to get a panelbeater to widen some steel ones, I'm thinking maybe I can tuck my Porsche Boxter 17x7.5ET50's under the stock front fenders by putting a narrowed beam in there. I can get hold of a new 2 inch narrowed beam easily enough.

How does a narrowed beam car drive? Is it an Austin Powers golf cart exercise to do a U-turn? Am I likely to rub the front tyres on the inner fenders/torsion arms?

Any advice on the pro's and con's of narrowed beam versus widened fenders would be much appreciated.

My car is a 61 Karmann cab sitting on a 68 IRS chassis with a Lanner 4-pot Porsche kit on CB dropped spindles.

Thanks

Steve
Sydney, Australia