Here's some background information from the kit along with some images I've pulled off t'interweb
The Hawk spaceship as designed by Brian Johnson was first rendered in a quick sketch documenting the general layout, but the final look of the model was determined by an interpretation of that sketch combined with the most economical way to build it. At least three models of it were made at different scales including 15” and 30”. The largest “hero” model (presumably matching the 1/24th scale of the 44” Eagles) upon which this kit is based, was built specifically for Space:1999’s 1st season episode “War Games”.

Entirely made from plastic, the model was relatively light weight compared to the Eagle models. The basic nosecone shape was made from sheet plastic vac-formed over carved wooden blocks and window panels also made from sheet plastic placed from the inside. Unlike the 44” Eagles, there was no cockpit interior made.

The fuselage and main engine was made from 1/144 Saturn 1b and Saturn V kits, the boosters from sheet plastic wrapped around cardboard tubes. Detailing was made by kit-bashing other model kits including the Harrier jump jet, SRN4 hovercraft, Gemini capsule, Lunar Excursion Module, the Russian Vostok rocket and AMT semi truck parts. Found objects were also used such as wedding cake pillars and bed mattress vents simulating the underside VTOL thrusters. The rear engine bells were made from bottle caps and a tea dispenser set!

The finished models were originally painted overall white with various grey panels and black anti-glare panels on the nosecone section like the Eagles. The 30” model was photographed as such for some of the widely seen publicity photos done for the show before the episode was actually filmed.

It is reported that, just before initial effects photography of the episode, the director reasoned that the all-white paint job was considered too similar to the Eagles and may confuse viewers, so a last minute decision was made to add the orange sections to it to more obviously differentiate the ship from the Eagles. Artists at the studio quickly brush painted the models with Humbrol enamels (the actual orange colour is unknown but thought by some to be Humbrol #18) and also changed the anti-glare panels to white to make it much more distinguishable to the audience. That is how the model was filmed for the episode and as portrayed on the main box art of this kit.

However, after filming the episode, and as seen in the famous Blackpool Exhibition of Gerry Anderson props and models, the anti-glare panels on the nosecone were repainted black. Many publicly produced photos were published in various magazines in this final state. Therefore all three different paint schemes made it into the mainstream through casual photographs of the model at various stages of its existence and remains a subject of confusion for many fans.
And here's the "bomber" they were escorting to Alpha


This is a new tool from 2018 as opposed to the rehash of the 1977 kit so it'll be interesting to see the quality of the moulds for this one.
Here are the parts

Instructions, decals & base

First couple of pages of the instructions

And the final page

And the various colour schemes are displayed around the sides of the box




All being well I should be able to make a start on this one over the weekend

