Be very carefull...
First of all, I see it's missing one of the glass racks. I had this machine (not this exact one) this model KD2-P and restored it.
Parts are really hard to get and the Cast Iron Drain valve should it need to be replaced is around $230+ dollars if you can find one.
The next part is the Bakelite Trap where the water drains from. It should be handled like a egg. I believe unless you have a donor machine that part is NLA.
You need Very Hot Water to heat up all that porcelain too. They are powerful machines, hold a lot of plates, but the top rack is limited.