If you are playing bars and small clubs, I see no issue using these together. However, I wouldn't take them together to a wedding or private gig, where your gear is expected to have a classy look.
If this will be a long term situation, there are places you can have custom wraps made. You could look into having a wrap made for the bass drum or even have someone do a custom refinish. But, I would only look at those options if you want to continue to use the Gretsch long term.
If you want a bigger kick Pearl has other options with similar finish, such as this:
http://www.ebay.com/itm/Pearl-Visio.../281093046256?pt=US_Drums&hash=item4172737ff0