12 Icons (maybe to match current or 16 new)

I am building a website and had some icons provided for part of it. I would like some more designed but the previous designer is no longer working in the design sector. The idea is to either design the new icons to match the existing, or to create a whole new set. Ultimately the goal is for uniformity across the website.

The 4 icons I have already can be seen here:
https://fireaid.freesite.host/what-we-do/disaster-relief
https://fireaid.freesite.host/what-we-do/emergency-response
https://fireaid.freesite.host/what-we-do/refugee-response
https://fireaid.freesite.host/what-we-do/road-safety

I need icons for other page headings as follows...

About Us (3):
https://fireaid.freesite.host/about-us/our-history
https://fireaid.freesite.host/about-us/who-we-are
https://fireaid.freesite.host/about-us/mission-statement

Projects (2):
(Not on website yet)
/case-study
/project-standards

Get Involved (7):
https://fireaid.freesite.host/get-involved/donate
https://fireaid.freesite.host/get-involved/donate-equipment
https://fireaid.freesite.host/get-involved/fundraise
https://fireaid.freesite.host/get-involved/volunteer
https://fireaid.freesite.host/get-involved/membership
https://fireaid.freesite.host/get-involved/sponsor
https://fireaid.freesite.host/get-involved/contact

I may add an icon for each top level nav/menu item too, but will decide later.

Can you please give me a quote and how soon you could deliver please?

Many Thanks

Andy