In case you don't know, you purchased a Tokheim 36B. This is one of the most desired Tokheim pumps that were made.
Here are some pictures that are on my website: http://petrolianacollectibles.com/tokheim%20pumps.htm
First click on Tokheim, then click on 36B.
There are two groups of us, some that like to restore the pumps back to what them looked like when they were put on the island. Then there are who like the looks of pumps with what they call "petina."
I have nothing against the 2nd group, I just like my pumps restored.
Now your pump, as mentioned it need a number of parts, but look at it this way, now that you have the best website and sources of parts, try and find another 36B that has the parts you need, then either restore it, or leave it as it is.
One other option, of all the parts on your pump, the top and a few other parts are what others are looking for, and probably worth more than what you paid for the pump.
Just don't get in a hurry, look around before you make a decision.