Remodeling of trunks

Hello, it’s been a long time since I converted my trunk as it is now (picture below in the appendix or in the Sig.). Unfortunately, I never got to complete it completely. Well, we come to the point and I have been playing with the idea to change the trunk for a long time and I would like to at least partly use it. It shouldn’t cost much in itself and I don’t want to do without any component. What would have to be accommodated: 2 Rockford power amplifiers 2 Subwoofers in a large box 1 Cap 1 extra battery I already have an idea I don’t know if it’s all so easy to realize. I thought the power amplifiers should be mounted one left and right behind the rear side claddings. How would I be able to fix them there without drilling holes? Possibly stick a piece of sheet metal to it with carrosserie glue and screw a piece of wood to attach the power amplifier to the wood? On one side I thought de The big subwoofer case as seen at the bottom of the picture has space for 3 woofers of which 1 woofer is no longer in it and the right one is. The case goes over the whole trunk width and I thought in the 3rd hole the battery somehow so that it also has a good hold. The two boot side panels are also no longer in it. I also want to get the wooden plates out of the trunk ha What do you think of the idea? Do you perhaps have better alternatives than I could do?