Avid Mk4 HH vs Kitfox Model ?

[Viper22 0]

What Kitfox Model compares to an Avid Mk4 HH?  Does Kitfox sell parts that will work on the Mk4 HH?  Like Kitfox fuel tanks will they work in the Mk4 HH?  Any other general information can be added.  Thanks!

[Av8r3400 1178]

Mark 4 Avid is comparable to a Model 3 Kitfox.

Very few, if any, parts would be interchangeable between them.