I finaly made a replacement top for the crack one.
not very good but good enough i think considering it is the first time I ever done any of this....
but I have a problem with hooking up the barbs to it
since the center hole isn't through the block all the way, when I try to thread it the threads aren't cut deep enough...
So I can't get the barb into into the center hole.
The only solution i can think of is to solder copper fittings onto the block instead like what jaydee has done on his block shown in
this post
before I do that though I was wondering if anyone had any other solutions to my problem.