Tips for Applicants:

1. Tailored CV: In my experience, a successful CV for this job listing would highlight relevant sales and marketing experience or qualifications. Don't just list your experiences, rather illustrate them with examples showcasing your sales strategy development or client management skills.
2. Relevant Skill Highlight: Consider any experience or skills you have that correlate with requirements like door-to-door sales or with construction machinery and supplies. Make those stand out in your CV.
3. Achievement Oriented: Over time, I have noticed that CVs that quantify achievements, especially in the realm of sales (e.g. increased sales by 20% over a period, recovered X-amount of lost clients etc.) are more successful.
4. Good Cover Letter: The cover letter is a great opportunity to show why you're interested in construction machinery sales and how you could contribute to the company.
5. Commission Understanding: Be clear about your willingness and readiness to work on commission as the salary mentioned can be reliant on your sales performance.

Areas to be Noted:

1. Method of Application: The employer specifically asks for a cover letter and CV. It would be beneficial to follow their instructions precisely.
2. No Deadline: No application deadline is provided in the listing. Applying as early as possible could give you an edge.
3. Experience or Qualification: This job does not demand a specific qualification only. Experience in a relevant field could be a ticket in, too.
4. Sales and Marketing: This job is rooted in sales and marketing. Applicants should understand what this entails, and their CV and cover letter should be able to reassure the employer of their abilities in this arena.
5. Construction Industry: Having some experience or knowledge about construction machines and supplies could be a leg-up while seeking this job.

Ways to Standout:

1. Research the Company: Nothing impresses more than applicants who have clearly taken the time to research the company as it shows genuine interest.
2. Skills Demonstration: Applicants who can show how their unique skills or experiences will help them excel in the job usually stand out.
3. Speak their Language: Use the same language as the job description where applicable to show you understand what is required.

Don't-Miss Insights:

1. Sales Pipeline Management: In the duties and responsibilities, managing a sales pipeline is mentioned. This implies that applicants should be capable of overseeing the sales process from initiation to closure.
2. Client Relations: 'Recovering lost clients' and 'maintaining current client relationships' indicates that candidates should understand and focus on the importance of healthy client relations.
3. Database Maintenance: While this may seem trivial to some, it's a key part of this role. Demonstrating experience or competency with CRM systems could win you some points.