Brick fences for Trees - Social responsibility project help

[krshnaone]

Hi All

I represent a startup BPO based in Bangalore and we are looking at a corporate social responsibility project of providing a brick fence for all the trees in the road we are located in Bangalore (approx 30 trees). We have obtained permission from authorities and are looking to execute this project cost effectively.

We are contemplating brick fence because rag pickers tend to steal / sell metal fences around the trees.

The total surface area of each brick fence is likely to be 20 ft x 3.5 ft. Now this again x40 for 30 trees.

Can someone suggest an approximate cost in terms of cement and bricks? What are the usual labor rates for such work?

Are there any other cheaper options we may explore? Our budget is about 40k - 50k max for the entire project.

Would it also be possible for us to add small branding boards on each of these brick walls (again it should be tamper proof)

Any suggestions on things we can do to make this proposition more cost effective? This is because we are a young company and have a limited budget - besides it is a social responsibility gig and not for private use per se.

My advance thanks for your responses and answers!

Best
Neil