Can somebody help resolve the chainline problem I'm now having on a Panasonic frankenbike?

I've just transplanted an Italian crankset and bottom bracket spindle onto my Panasonic commuting bike while keeping the current english-threaded cups.

I've been able to install and center this using a 1.8mm bottom bracket spacer behind the fixed cup. What I didn't consider was another mod on the panasonic that I'd done by stretching out the frame spacing to 135mm to accommodate a rear wheel with that O.L.D having a 7-speed cassette.

Now, when the chain is on each of the two outermost cogs of the cassette, it will rub against the next cog in as it goes to the crankset.

My measurement for the current chainline is 42mm.

(I'm doing this only because I got a new crankset and bottom bracket cartridge for my vintage Bottechia and I wanted to reuse the old crankset. The Panasonic's old crankset was cottered and heavier. In retrospect, I should have known that I would run into this kind problem by using a crankset intended for a rear wheel having 126mm O.L.D. with a wheel having one of 135mm.)

Anyway, what to do now? Put the old crankset back in? Leave it alone? Get a longer ISO-square-tapered bottom bracket spindle?

Oh. And did I mention that the bottem bracket housing on the frame is 70mm wide? But english threaded?

It's only because of this that I didn't believe that I can't use a cartridge bottom bracket. Or can I?

The 1.8mm bottom bracket spacer is needed because the english-threaded cups on the panasonic have thicker walls than those used with the crankset on the Bottechia.

While Sheldon Brown put up a lot of info for Shimano components, there isn't anywhere near as much that I know of for Campagnolo or compatible components.

The only hint that I can google is from this webpage, http://www.velomine.com/index.php?main_page=product_info&cPath=86_83&products_id=722

It's only because of this that I believe the part that I can best use to resolve this chainline problem is a Campagnolo 70-ssx3 road triple bottom bracket spindle or something comparable. I think.

(The part is sold out at this website.)

I didn't think to measure the italian spindle that is now inside the Panasonic. It's not a Campagnolo but I believe that it's comparable to the 70-ss.

Removing that installed 1.8mm spacer that should compensate for the greater asymmetry that the 70-ssx3 will introduce. I think.

Well, what do you think folks?