I get that you mean "buy" rather than "invest in".
So, is it a good boat? I sure don't know, as I haven't even heard of them. Looks like it's based on the Columbia 26, as you've likely already learned. Another Columbia derivative was the Watkins line of sailboats. Those Columbia molds really got around.
Is the boat you're looking at a swing keel? Do you need a swing keel? Personally, I wouldn't buy a swing keel, unless I absolutely needed the reduced draft. Less for me to worry about and maintain. YMMV.
If you're unable to get any owner reviews, or other evidence as to it's integrity, and you have performed a thorough inspection of the boat, find the best surveyor you can, and communicate that in addition to wanting to know if the boat is sound, you'd like an opinion on the overall build quality as compared to other production boats of the era.
It appears that the headroom is enhanced by having the cabin sole extra low, and I'd want to know if that was done at the expense of bilge volume.
The rarity of the boat would figure into what I was willing to pay. I always like to imagine myself selling the thing that I'm thinking of buying, and ask myself if I'd want to be in the position of selling it for X dollars. I'd be looking for a little lower price as compared to an O'day, Catalina, etc., as any potential buyers would be in the same quandary as you.