.. not sure if a plan is available...
That reminds me...
I just saw a post, elsewhere, by 1971 F2C European Champion Pentti Nore, saying that people did not used to build racers from plans. Who wants to fly something that someone else designed anyway
![Cheesy :D](https://stunthanger.com/smf/Smileys/classic/cheesy.gif)
... you'd just start building and made it up as you went.
Maybe you made a plan afterwards, maybe not.
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I've been watching some old-timer free flight discussions and got the impression that a plan is not - or did not used to be - for duplicating what the designer did: it is a general idea, and the builder should work out the details on his own.