Does RAILNSCALE sell painted kits too?

No, only unpainted kits are available.

Does RAILNSCALE sell kits in other scales too, like H0 for example?

We focus is on N-scale (1/160) kits. It is however possible to up-scale our kits to 1/148, 1/144 or TT-scale (1/120). The larger the model, the more expensive a kit will become. Do not hesitate to contact us in case you wish for an up-scaled model.
Our H0 (1/87) range will be limited to ‘tools’ only.
Unfortunately it is not possible to down-scale our kits to Z-scale (1/220).

What paint do I need to paint the kits?

Best is to apply a primer first. Alls sorts of hobby paint like Revell Email Color, Humbrol Enamel, Tamiya, etc can be used.

What glue do I need to assemble the kits?

Superglue.

Where can I buy  modelling clay?

DAS and Darwi Classic modelling clay can be purchased here:
Michaels.com
Prang.com

Where can I buy Microscale Kristal Klear?

Most model rail road shops will have Kristal Klear.  etchIT also sells Kristal Klear.