>>8885824>>8885772My suggestion is you grab a can of tamiya gold, and just spray it. Even if its a shitty coat, it'll look ok compared to the original.
Your best off picking up an sd gundam first though and looking up tutorials. Spray cans are 10 bucks and last enough for all the Millenium puzzle parts.
My only warning is don't overspray. Be careful. Spray from a distance.
See gunpla general. The best kit to pick up are kits that look like pic related's backround