I have also received my Su27.
The quality is in my eyes the best I ever seen. The landing gear is a bit tricky to assamble but is done it works perfectly.
For the nose gear I did some changes.
1. I added a dummy cylinder out of alu tubs and 3d printed the cover.
2. the original front wheel is with 76mm diameter a bit too small in direct comarison to a side view drawing. so I printed this as well (now 98mm diameter) with some issues an a lot of scrap on the tire. now I found a good process/material for this.
3. the fender I think is a must for a SU27. that was a lot of work to design it from scratch (from pictures), but the result I like
