"Hi Ron it would be a pleasure to sent you all the details to do our Mig..."
Hi Henk, I've been out of town for a week. I had to fly model airplanes outside of my state.
I would consider doing a copy of your aircraft... Do you know if your MiG owner-friend intends to redo the outer surface of the aircraft and markings, or would he leave it as it currently is? (That could get to be quite an expensive and time-consuming task) Also, would he keep the Russian markings, or would he return to the Polish markings?
My kit has the PFM spine (per photo), although that appears to be the only significant difference. I would be willing to consider cutting into the spine to get closer to the wide spine your MiG has. Going with the Polish markings might make it more of an interesting aircraft too (for me). I cannot find many photos of either the Russian or Polish 21 with the white striped tail. In my case of no good photos to replicate, I'd have to then stick with going with the Soesterburg MiG.
See also below another MiG I took photos of this last weekend. Also with a PFM spine, it appears. I can't vouch for authenticity of the colors, but it looks nice. [8D]