Non Profit Plumber – looking for a plumber

I want to replace the Shower Drain with Removable Strainer Cover in the basement.
We are old and disabled people. We can not afford to pay too much.
please help us to fix this problem. Only reasonable and fair offer.

If anyone willing to help old people please contact us. not for profit.
Please confirm your fees.

Please see below the existing drain.
I have a new drain with Removable Strainer Cover

My location at Meadowvale Rd & Sheppard Ave East/HWY 401/Port Union