Welcome to wedge ownership.
If the car has only covered 6000 miles there shouldn’t be too many electrical problems.
So before you part with your well earned money (I presume [}:)]) clean all connectors and fuse contacts thoroughly.
Also if you want to stick to the car for a longer period it might be better to acquaint yourself a little more.
Start with getting yourself a workshop manual and some basic tools.
Much cheaper than the average workshop, and much more fun/reliable [:D]
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<font color="blue"><i>1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
<b>[url="http://www.tr7beans.blogspot.com/"]<u><b><font size="2"><font color="red">My Weblog</font id="red"></font id="size2"></b></u>[/url]</b></i></center>