Create SlickGrid modules -- 2

I am looking for a developer to create SlickGrid modules with specific functionality that meets my design preferences. I specifically need the modules to replicate key common spread-sheet behaviours, and bridge gaps between common spread-sheet state interaction behaviours and the currently implemented SlickGrid plugins https://github.com/6pac/6pac.github.io/tree/master/SlickGrid/plugins . I have specific design preferences that must be met. My timeline for completion is within 4 weeks. The modules should be able to perform efficiently with large datasets. If you can provide the skills needed to create these modules and meet my timeline, I would be delighted to work with you.

Main criteria:
1) Following a useSlickGridPlugin hook template, for SlickGrid 5.1
2) Leveraging Typescript, with proper error handling, DRY principals etc.
3) Sufficiently replicating the behaviours.
4) React

Functionality list :

1. Dragging square selection of cells to a secondary location within the SlickGrid https://slickgrid.net/, using Beautiful DnD. https://github.com/atlassian/react-beautiful-dnd
2. Clicking of Cell header highlights column.
3. Clicking of Row header highlights row.
4. Drag corner of cell down to repeat value, or pattern (equivalent to Excel).
5. Double click of bottom right corner of cell copies the cell values downwards to its left-neighbour columns last populated row number.
5. Select Top Left selects whole table.
6. Moving right or moving down with scrollbars scrolls only to the latest populated cell, but moving further downwards or to the right is possible using arrow keys or CTRL-Arrow to the end of the grid.
7. Add transparency and smoothness to the existing Range Selection plugin (or produce an improved Typescript equivalent): http://6pac.github.io/SlickGrid/examples/example-spreadsheet.html

This are intended to bridge the gap between the current implementation and common commercial spreadsheet applications.

Thanks!