Is there anyone able to help me do final marlin firmware setup config?

As a total dummie to electronics and loading code, I have to admit the whole project is now completely stalled and I have no where to go. Further info below.

I have constructed a Prusa i3 Pro 3d printer with dual extruder from kit printer3d in Spain. The Marlin firmware has got the better of me , could you offer a service to finally configure this printer for me? Prepared to ship it or bring it in to your workshop. Last message from the company is shown below:

I am using the 1.06 version as advised by the manufacturer. who also advised “You can use this Marlin as a start but you will have the measure the offsets between both extruders, see link”
https://github.com/kitprinter3d/Marlin/tree/P3Steel-PRO-DualExtruder-A4988
www.kitprinter3d.com
info@kitprinter3d.com

​I am happy to pass this printer onto to someone who can finish the config and return it to me as a working project could anyone help/offer any costs to sort it?

​West Midlands & East Midlands ideally but can travel

Regards

Max