Pl correct these sentences in this paragraph.

Hi, Can you pl correct these sentence:

"You can start the Hardware upgrade on these systems starting from this Saturday. You can start the upgrade in the afternoon time on Saturday. We would like to have one week gap between these upgrades on each system."

You can start the Hardware upgrade on these systems begining/starting from this Saturday. Please do (You can start) the upgrade only in the afternoon (time) on Saturdays. We would like to have one week gap between the (these)upgrade of one system till another/second one is taken up.(on each system.)"

Delete words in brackets. Use alternative word (/) in red if it sounds ok to you.