Whoa man… slow down. You came out to your car and you said you had no start…no nothing. Then you said you jumped the starter from the battery. Well… that is not nothing… That is a good battery…and a starter waiting for the 12vdc signal it would get from the starter relay.
You guys replaced a lot…and that actually adds unknowns to the equation honestly. You need to test and verify what you have and do not have…before replacing what surely were some good parts here.
To me it sounds as though you had a bad starter relay or starter solenoid at first and maybe nothing more…but since you didn’t test as you went I cant possibly know.
Mr @Rod_Knox has given you solid advice to follow, as usual…follow it… and then locate and pull your starter solenoid and see if you can swap it with another used elsewhere.
Report back after that.
P.S…yes you can get new parts that are total Dog S&^%…so that is a reality…