As long as it won't take to long than it's fine, as having the light go on and off during the night can mess up a tortoises day/night cycle.
Yes you should be able to go with just the CHE and the UV strip light.
Just remember too that a table is nice but a viv is easier to keep temperatures where they should be, especially in the winter time. So no huge rush to get your new tortoise in a table at this time of year.
Danny