RE: which P38 to get??
I don't believe the VQ ARF is still being produced. I tried to buy one five months ago, but was told that the kit is out of production. I even contacted the supplyer in Viet Nam, and was told the same story. The first issues of the KMP P-38 had some flight issues, not serious, but needed lots of elevator input to solve the problem. VQ's P-38 flew off the board better, but was more expensive. You can still find the Nitro Planes P-38 in Asian hobby shops if you shop around, for a price delivered for under $500.00 today. The N.P. P-38 is larger at 90" and no where near the scale outline of either VQ or KMP's P-38, and flying weight at nearly 18 ~ 20#. The N.P. P-38 is fixed gear, has flaps only on the out board wings and is built up with the engine nacells and stab glued together. The wings come appart at the center and the pilot pod is removable (there is a long forum in RCU on building a three piece wing for the N.P. P-38). There have never been a lot of P-38's on the market, for they are a complex build and have a nasty single engine performance issue.
Tower hobbies sold a profile, you build kit, a few years ago that flew very well, but no longer sold. You may be able to find a kit forsale on other web sights, or E-bay.
Good luck and soft Landings Always,
Bobby of Maui