question for lorry owners...leisure batterys (also in CR)

[goneshowjumping]

we are fitting a leisure battery to our lorry, to run lights and water pump, i have a guy who can supply the battery, all the parts and fit for £140. I have never gone down this route so not sure if this is fairly priced and wondering if i can make it any cheaper by buying my own battery as he is charging £90 for parts (including battery) and £50 labour.
if i do buy my own battery what sort am I looking for?

 

[tinker88]

a good lesuire battery is minimum £65 , so i dont think thats too bad. its similar to what we would charge

 

[goneshowjumping]

thanks tinker88, least I know its a fair price!