Servo selection is always a tough question. My stock answer is to always buy the best servos you can afford. They will be with you for a very long time and you will advance over the years. This little light weight plane will fly very well with just standard servos but if you like you can get bigger or better servos. The set up on your plane is a Y for the elevators and I think it calls for a pull/pull rudder? The Nitro planes did anyway. I always run my strongest servos on the rudder and elevator. I have a nice 60 size scratch build on my bench now and have a full set of the HT 5475 servos for it. These are the low end Hitec digitals, about $35.00 a piece that I bought several years ago for another plane and have been using them on and off for years. Nothing great but nice for a small stunt plane. JR makes a nice digital sport servo also that isn't a bad price. Stangs drawing isn't bad at all. I use angle stock myself but as long as you get something in there to help support the LG block you will be better off. Thin down some Epoxy and fuel proof everything you can get to. I have noticed that a lot of the ARFs today are starting to come fuel proofed out of the box but I still do it again. I think Seagull ARFs are made by CMP just like Nitro Planes?? Who knows. Not bad flying planes and the price is right!!