I think No.
If I understand your question, you would like to have your airplane equipped such that you could change between tricycle gear and tail dragger at will?
First I don?t build any tricycle mounts; we build the RV-4 mounts only. At any rate I think you have to choose one or the other, frankly it would be a big job changing it over very often and I would not want to carry all the tricycle equipment along on a tail dragger, the other way around would not be too bad. I know this has never been promoted buy Van?s.