Sanwa M8 new receiver or spektrum system

[Micha_MX4]

well I bought a new car and need a receiver in there ( I don't swap receivers)

now I want a small one - best deal is an ACT pico top for 40

[Micha_MX4]

well I bought a new car and need a receiver in there ( I don't swap receivers)

now I want a small one - best deal is an ACT pico top for 40 € at ebay
plus pair of crystals 7€ receiver I think about 11€ Txl, plus shipping
that's about 60 - 65 €.

dilball in Hongkong is selling the Spektrum system for the M8/M11 for 129,99$
that's about 100€ s&h 8$.

Do I see that right that I go for the spektrum system and sell the crystal stuff?

Anyone negative expereinces with the 2.4GHz frequency (interference with w-lan, bluetooth f.e.) ?

where do I get small spektrum receivers for the best price (for a YOk MR4-BX)

Any ideas?

Thanks

Micha