Will gladly help on which to build depending on scale. There isn’t whole lot bigger than 1/72 out there since Aliplast (Italeri) released their 1/72 FIAT G.55 in 1962 amongst the earliest post-WWII Regia Aeronautica Italia (RAI) scale styrene kits.
Will also say painting mottle camouflage can be vexing if downright insanity-inducing; be prepaired to do frequent spray nozzle cleaning regardless if acrylic or enamel, “sharpness” rapidly falls off after just a few minutes of painting.
Also keep in mind what camouflage era between 1936 and 1943 y’all’s build falls in, i.e. three top colors up till late 1941:
- “Sand” (Giallo Mimetico 4 shades)
- “Maroon” (Marrone Mimetico 3 shades)
- “Green” (Verde Mimetico 4 shades)
“Grey” (Grigio) underside specified standard. “Camouflage Brown” (Bruno Mimetico) also was employed in lieu of or in rare cases along with “Maroon” or rarer still “Brown” (Bruno), a fluid line color, both “field appled”.
So-called “banded” camouflage schemes 1936-38 period common on early FIAT CR.32s, Savoia-Marchetti S.79s & 81s, “polygonals” Breda 64 & 65 in particular late as 1939. There also were two-color green schemes typically dark over light or reverse in wide array of mottle patterns, including a Luftwaffe-style “Wave Mirror” variant on a twin-tail 210° Squadriglia CANT Z.1007, do intend to render it next year.
Aircraft built late 1941 onwards came under Tavola 10 (“Table 10”) standard, i.e. “Dark Olive Green” (Verde Oliva Scuro a.k.a. “Continental Green”), “Light Hazel” (Nocciola Chiaro) topsides, mottled (many variants) or banded latter particularly after the September 1943 Italian Armistice principally the Aeronautica Nazionale Repubblicana (ANR), “Light Blue Gray” (Grigio Azzurro Chiaro) undersides.
A significant number of RAI & ANR airplane model photos on the Internet depict the so-called “Continental” Dark Olive Green over Light Blue Gray camouflage scheme, from mid-1942 on most aircraft were delivered from the factory that way so painting near any RAI aircraft from then into the ANR-era like this is very much OK.
There also were “Anti-Camouflage”, “Colonial”, “Marine” (excluding field-applied Aerosilurante adaptations), “Night”, “Trainer” topside colors well as for aircraft interiors, explaining them would take awhile.