Good morning, Scott.
Have you tried to pinpoint the source of the looseness? There are a lot of steering components to look at, and hazarding a guess for advise will be tough. It'll also depend on your definition of looseness - some have defined it as a wandering of the front end or poor stability, which may just be alignment.
There are a few sources for new parts - VP-Autoparts (
https://vp-autoparts.com/) or Vintage Import Parts (
http://www.vintageimportparts.com/) are two good bets. Vintage Import offers the advantage of being able to ship from Canada, though in the end the price and speed is probably a wash and VP-Autoparts could carry a larger inventory (and will ship to you from Sweden if their US site doesn't have the part in stock). For used parts (and knowledgeable service) you could try John Paulsen in Springbank - if you don't have his number already I can give it to you.
The steering boxes on these cars are not particularly sophisticated, and they do require adjustment every once in a while. They should be relatively tight on center and loose towards the left & right. An adjustment from a skilled hand may be enough to set you right (again I'd recommend John). The idler arms on our cars can get pretty floppy as well and this will cause a looseness, particularly in the right wheel toe. Both of the steering links or the drag link have joints at each end that can wear out, the control arm bushings and ball joints wear out, and even the bushings between halves of the steering column can wear out.
If you can define your looseness a little, or if you can crawl around under your car for a bit, let us know and maybe something will jump out at us.
Matt