The Marutaka(Royal) kit is no longer available, seems Marutaka quit producing it. Just got an email back today from Hobby Barn with this info.

Not much left available in small size kits, here are the ones I know about-

http://www.atimanufacturing.co.uk/
Wingspan 74 inch Length 50½ inch
RC Chnls Rud/Elv/Ail/Thrtt Weight 8 - 8½ lbs
Available as Kit Engine 2X .40 cu.in.

http://www.wingmfg.com/
Wing Span 70"
Length 50"
Wing Area 675 sq.in.
Dry Weight less flaps & retracts 8 lbs.
Dry weight w/flaps & retracts) 10 lbs.
Stab Area 171 sq. in.
Airfoil Fully-symmetrical w/2 deg. washout
Scale 1 1/4" = 1'
Engine Size: Two stroke .40 - .60
# of Channels 4-6


Occasionally you can find the old Royal(Marutaka, either name) on Ebay, that's where I got the one I'm building, it's about the same size range as the ATI-Aerotech one listed above.

For bigger, in addition to what was suggested above-

http://www.glhobbies.com/P38%20LIGHT/1_6P38.htm
WING SPAN 100"
LENGTH 65"
WEIGHT 12 -15 lbs
ENGINE 90 -1.50 cc

http://vicrc.com/
check out the webpage for specs

Then of course there are the Kondor Model Products and VQ Model Aircraft ARF's, if they offered the VQ in kit form I'd buy it right away! The VQ does get some decent reviews on this board.

http://www.vqmodelaircraft.com/index.html
http://www.kmp.ca/index.htm

I think the ATI-Aerotech is the only pure wood kit left in a smaller size available unfortunately.

I do have some plans for a .15 size kit I bought from RCM, and I think there are some other plans available if you want to scratch build or have a lazer kit cut, but most of them are the bigger sizes, above 100 inch wingspan.

There is lots of info about most of these kits that are still available, just as Twinman in the Twin and Multi forum he's a P38 expert, or do a search.