| Components | Kit | RtR | Applies to |
| | | |
| Boiler – C-type for tender loco, single flue with poker burner for tank locos | yes | yes | Dummy on electric version |
| Lost wax brass castings | yes | yes | |
| Smokebox | yes | yes | |
| Transfers (actually vinyl wraps) | yes | yes | |
| Turned parts | yes | yes | |
| Lubricator | yes | yes | Not on electric version |
| All silver soldering done | yes | yes | |
| Wheels & axles | yes | yes | Usually Slaters or Walsall |
| Reversible valvegear + twin crank axle | yes | yes | Not on electric version |
| oscillating steam motor (tank locos only) – reduced cost | optional | optional | Not on electric version |
| Twin cylinder – Outside – custom built | yes | yes | Adams Radial Tank |
| Fuel system – tank, burner etc – | | | |
| spirit – NOT on tank locos | optional | optional | |
| gas | yes | yes | |
| Computerised R/C system | yes | yes | |
| Axle pump – tender locos only | yes | yes | Not on electric version |
| Solder | no | done | |
| Adhesive – Loctite AA 326 recommended | on request | done | |
| Paint – acid etch primer, black gloss, assorted colours, varnish | no | done | |
| Assembly | no | done | |
| Painting | no | done | |
| Transfers (actually vinyl wraps) applied | Supplied | done | |
| Electric version – | | | |
| Motor & gearbox | yes | yes | Electric version only |
| Motor battery | yes | yes | Electric version only |
| Speed contoller – via R/C system direct | yes | yes | Electric version only |
| | | |
| Note – Tank locos will be gas fired, tender locos – gas or spirit | | | |
| The kits are complete except for solder, adhesive & paint | | | |
| | | |