I first converted a habro and made quite a lot of mods but it wasn't up to centruion standards, next a pipe build with some doopy add-ons. Pipe build I didn't find too difficult and was a lot of fun, also it ended up being lighter than my hasbro. I have electrics and lights in both of mine and I found with drilling the holes and attaching the t tracks you get to see the lights in the gaps, don't with a full resing kit. Doopy do a full resin kit which I have heard is quite easy to put together but there are issues with its strength. Good luck what you decide.