I have a tough time understanding the mentality of keeping the stock suspension but the steering needs to be upgraded.
I see it a lot though, so I guess I'm the weird one. Like I need another example of that!

There are kits that use a GM econobox rack (cavalier?) to replace the worm and sector and slightly strange linkage. It's had mixed reviews, you should be able to find it and the reviews out there with a search.

I plan on getting my '40 running with the disc brakes, lowered uprights and shock relocation then see if the steering is bad enough to warrant looking at an upgrade.

P.S. Would like to see pics of yours. A 42 is darn rare, as I'm sure you know.