We already have Super King Air (Model 200/Model 300 series), but I do think that there are space to add the Super King Air little brother (and also, quite literally the predecessor of the SKA). The KA offer multiple config, including the standard 90 series and stretched 100 series. There are multiple variants that had existed through out the 50 years production run, including the U-21 variant (which was often converted into VIP transport and radio relay/operation aircraft).
In its original planned configuration, the King Air was to have been powered by two 917 shp (684 kW) Turbomeca Bastan VI engines, but later prototype was fitted with the PT6A-6 (Pratt & Whitney Canada product).
After 112 65-90s were completed, production switched to the Model 65-A90 with PT6A-20 engines. As a measure of the type's popularity, 206 65-A90s were built in less than two years when production switched to the Model B90.
A total of 184 B90 models were produced before the Model C90 was introduced in 1971,with wingspan increased over earlier models by 4 ft 11 in (1.50 m) to 50 ft 3 in (15.32 m), Maximum Take-Off Weight (MTOW) increased by 350 lb (160 kg) to 9,650 lb (4,378 kg), and PT6A-20A engines. The broadly similar Model E90 was introduced the following year, with PT6A-28 engines; the two were produced in parallel. Further refinement of the 90 series resulted in the Model F90 and follow-on Model F90-1. The F-models featured the T-tail of the Model 200 mated to the fuselage and wings of the E90, with PT6A-135 engines of 750 shp (560 kW) driving four-bladed propellers. The F90 prototype flew on January 16, 1978, and 203 production versions followed between 1979 and 1983, when the F90 was superseded by the F90-1. The Model C90-1 entered production in 1982 after 507 C90s and 347 E90s had been built,[8] and featured PT6A-21 engines
For the Model 100 stretched variant, features five cabin windows instead of the Model 90's three; MTOW increased by 1,300 lb (590 kg) over the 90, to 10,600 lb (4,810 kg). The 100 used the wings, tail, and engines (two PT6A-28 engines, although rated at 680 shp)
it was superseded by the Model A100 in 1972, with a further increase in MTOW to 11,500 lb (5,220 kg), fuel capacity increased by 94 US gallons (360 L), and four-bladed propellers. A total of 157 A100s were built by the time production of this model ceased in 1979. The next in the series was the B100, which featured 715 shp (533 kW) Garrett AiResearch TPE-331 engines as an alternative to the Pratt & Whitneys offered on other King Airs, and another increase in MTOW to 11,800 lb (5,350 kg). The B100 was introduced in 1976 and was produced concurrently with the A100 for several years; manufacture ceased in 1983 after 137 were built.
Specification will be listed below, but be aware this might not be true for all the variants (considering different years/series require stronger or more modern avionic upgrades.

