Repotter

"I'd be happy to transform this nothing tree into something great over time."

I really don't see this being "something great" This Ficus is commonly called Ginger or Ginseng Ficus. Used as an ornamental house plsnt and not really a good subject for bonsai.
But if you are new to growing things and especially to bonsai it is a good plant to practice with.

I would shorten the branches back to one or two sets of leaves per branch. This will allow it to back bud and fill in the "empty" spaces to make it more full.
Then by selective pinching of the buds you can direct the growth where you want it.

Good luck with you tree.

Hec

__________________
http://www.tellys.com

http://www.Fourseasonsbonsai.com
The original Four Seasons Bonsai Club of Michigan.
Guest master in August is Pedro Morales on August 30, 31 demo and workshop.
Tellys Greenhouse, 3301 John R road, Troy Mi. 48083

Four Seasons Bonsai Club meetings monthly.
Troy, Michigan

"Anything is possible when you don't know what you are doing"................someone famous I think.