Rookie upgrade here

[gregzz4]

I'd suggest keeping the lights off for now, or you'll just fight algae
Also, keep your pumps and powerheads off until the sand settles, to avoid unnecessary wear

If you want to add critters right away, I wouldn't transfer the old sand, unless you wash it 'very well', but the amount in a 10g is not worth saving, IMO
If you transfer the sand, even though you want the life, you may have an issue or 2

But, with that in mind, if you don't plan on adding any 'critters' for a bit, until after your new tank cycles, go ahead and transfer the sand and LR now
Then go through the regular cycle testing;
NH3, NO2, NO3