4300 Int'l j1939 communications?

Hello all, have purchased a perfect condition 2004 crew cab Durastar 4300 with 6+1. Runs great, will turn into a service truck.

Am looking for a way to use the International tools such as DLB and SDS/third party such as JCOM1939 monitor to read DTC, configure and edit body control module etc.

I have had an ELM327 OBD2 to USB adapter for ForScan on Ford pickups, and figured I would buy a j1939 to OBD2 adapter, and the best communication I can get is showing truck voltage in JCOM1939.

I hear good and bad about USB Link 2/3 and DPA5 and a few other adapters, any preference? What is the cheapest? They all seem expensive, and then will third party software work?

Hope I posted in the right place. Thanks.