Hey all, Wow Prophet, those are some very interesting varieties you have there, wonder if they taste any good or not as I know there are many different types of finger lime's. Some grow wild around Brisbane including the much sort after 'green' variety, and some grow in North Queensland including a red but most of them don't taste all too nice. I have 5 green variety finger lime plants (three grafted and 2 seedlings) and one of a certain red variety I impulse bought. Any quick growing citrus lime is a good rootstock for these plants I have found including normal old lime trees. As for these trees being a money saving tool, if you are willing to wait a little while, yes. From seed they take around a year to get even big enough to put in the ground and will take around 7 to start to fruit but will grow to a height of up to 15m in 10 -15 years, as a grafted plant they will only grow to a size of about 4m but will only take around 4 years to fruit (all depending on condition). I am referring to my experience growing the popular green variety which I was able to obtain from a local plant store My two cents