Scalehobbyist has two Revell/Monogram P-61 kits in 48th scale. One is the old Monogram kit and is $20. The other is labeled Revell of Germany, is called P-61A/B, and is $36. I've read elsehwere that it's the same kit. Are there any differences between these kits to justify the price difference? Are the molds the same? Any additional details?