Stretch Limo from Hobby to Galveston?

I usually book our transfers through Galveston Limo and pay $50/Round Trip per person. This time we will be traveling with another couple and wonder if a private stretch would be affordable with four of us? Anyone ever done this? Thanks!

We recently returned from at cruise out of houston. We had a great driver. For the four of us the cost was 60 from houston to hobby. I know he drives to galveston also. If you would like his number e-mail me fuller1958@yahoo.com