I think as a supplement to my earlier posting I can line up with John's comments. An "object" should for most people only be of interest if fairly complete and only with limited, simple rust.

I will repeat that finding pieces in general is no problem, and especially if you have contacts in/with Sweden this will be piece of cake provided that your object is fairly complete.

My knowledge of parts for the 544 and motorparts for the B16 is pretty recent, as I have done a motorswap on my -58 544 during this winter. Even the hard-to-trace cam can be found, but prices of some parts can be more expensive than for the more recent B18.

Do not be afraid of the B16, neither for finding parts or for reliability/speed. With the B16B which was mpost common in cars exported for the US you will have at disposal 85 SAE for a car a little more than 1000 kgs, it makes it move more than fast enough for it's road characteristics.