Good evening you finest folks out there.
I have a question.
I want to build a gas/glow trainer for our club to train a young pilots who just gets in the hobby.I think i will go with something as simple as spad with maybe flat bottom foam wings or such. I want it to be a big plane so it will be easily seen @ 3-5 mistakes high.Therefore i will have to use a gas motor.I looked in to conversions a couple years back(for my own plane) but then i had other priorities in my life.Now i am back to conversions and i want to build one as cheap as possible.I already have a weedeater i will donate towards the project .
I wanted to ask you guys who's out there doing a best deal on the adapter and velocity stack?I want to use a glow+gas mix so i won't have to have an EI.Please advice on where to go for the best bang for the buck

Thankfull Mitty