There are a number of ways to do this and here is the way that I see it.
I do not want to spend a lot of money for basically a one time project.
Pentax bellows system
The availability of the Pentax bellows and slide adapters is limited, no longer manufactured.
They usually want a premium price for it, especially the later versions such as the auto, K and M models.
It could require some additional adapters etc in order to maximize the use of the K-1. Figuring these kinds of things is fun for me, but that usually takes a lot of time.
This method is one slide at a time,which I really don't mind, but that would make the time to complete this project quite long.
The above
link is a jewel for knowledge about the equipment and it is well written. This helped me the most to know what would be required to use each model.
Send the slides out
Just too expensive and not really interested in doing it that way
Buy special equipment to convert slides
Too expensive, about
$3K, and limited for that purpose and also not really interested in that either.
Rent special equipment
From the same
company above you could rent the equipment for $425. Still too expensive for a one time project.
Buy a photo scanner
There are several of these out there and some are just okay and others are better. I decided to get
this one after reading the review on it from a very experienced photographer, Michael Logusz,which was well done and fair. I will still be able to use it for other media if I needed to. It is about the same or a little more of an investment than the Pentax bellows system, and is much faster while still allowing some adjustments prior to creating the file.
So for me anyway that will be the method that I will use.
Thanks for the replies, very helpful.