We should be able to supply this balance to you. Before I recommend anything, can you tell me the width of the metal channel?
Take a look and compare our S800-24 channel balance with a 23B strength option to yours. Thanks for posting!
We sell the punch tool, which is our 75-075, but not the rivet unfortunately. I can at least tell you that the rivet size we use for this balance is 3/32" x 7/16". You should be able to find that at any local hardware store. We also sell the top and bottom nylon fittings you'll need, which are the 19-007 and 15-018, respectively.
We don't have a rivet in that size either, unfortunately. I'm shocked to hear you couldn't find that size at a hardware store. It's not like it's uncommon or anything, it's just not something we carry at the moment.
Your top sash guide is similar in design to our 18-044, but you'll have to compare our measurements to your own to confirm that they line up.
You can see a detailed price breakdown on the store page of every product we sell.
The only parts of our balances that we supply separately are the end attachments. The pulley, spring and metal channel can only be replaced by purchasing new balances.
You can view our return policy here. Thank you!