Spanish to English Bus/Financial Accounting Financial audit report

Good morning dear colleagues,

I am still translation the audit report and I have a doubt. Below you will find the source text and my translation of such text:

Comprobamos en los desembolsos de efectivo mediante cheques, con el alcance necesario, el cumplimiento cabal del control interno de egresos, tales como cláusulas de los contratos por pago por suministros de bienes y servicios, autorización, justificación con documentación soporte suficiente, pertinente y competente e invalidación de la misma.

While reviewing cash disbursements made with checks, we confirmed full compliance of internal control of disbursements, including contract clauses that included payment for supply of goods and services, authorization, evidence with sufficient and appropriate supporting documentation, and their annulment.

Comments:
1. Actually, I am rephrasing the initial part of the paragraph in order to make it more understandable in the English version.

2. In my humble opinion, "con el alcance necesario" seems a little bit redundant here, but I would like to know if it would be necessary to translate it.