hare krishna

where did you purchase your deities from?
Deities usually come painted fully. When I contacted a supplier about the gloss I was told clear varnish would do the the trick. If your deities are going to be dressed you may not have to paint their backs. I always feel it risky to paint deities after purchasing. In most instances an airbush is used to paint deities which gives a perfect blend. But thats just my opinion. You may be an acomplished artist, if you are confident about painting them then do it. I generally use enamel oil paints to refurbish deities. Beware of the varnishes you purchase though, some have a yellow wooden finish. Clear lacquer spray paint should help.

For wigs you could try looking for non human, synthetic wigs/extensions and tailor them.

best of luck