rmprob

I recently bought a 1978 2dr corolla, It has a 3k and 4spd, I am wanting to have it ready for autocross next year, I am looking for better and hopefully adjustable struts. I will more than likely do a coil-over conversion and mount new perches. Are there any struts readily available? Any inserts that are adjustable? If not I have found on here that people are using Ra40 struts, are these a direct fit or do they require modification? I hope I am not being too difficult, but my internet searches are not yielding many results.

Nice video