Diesel prices affecting my project

I was able to get 15 small nest boxes complete today. I've made 5 Spotted Flycatcher and 10 Pied Flycatcher/Redstart nest boxes. These were all made with scrap pieces of ply that I had stored. The Spotted Flycatcher nest boxes I've made for my friend Steve Roberts along with a few tit boxes.

Today I am doing a talk to a Group in Raglan and I am hoping to sell a few boxes to this group to raise funds for my project. It is costing me a fortune erecting all these Barn owl nest boxes with my big old diesel 4x4 and I need to raise funds to help with the costs.

Www.projectnestbox.co.uk