ok, so i am about to embark on a mission to cheaply build a soft top for my '83 k5. I'll be transferring over info from my other thread entitled "[pic request] soft top supports and seams" or whatever it's titled. So, here's the basic idea of my plan. Thanks to jekbrown, i have a second hard top which will be subject to a great deal of cutting in the near future. I will chop it a couple inches back from where it mounts to the cab, and take this down to just above where the fiber glass meets the bed rails. it will be sanded down smooth and have a nice straight look. now, i will take some sort of tough and pliable polymer sheet and cut a piece out to match the shape of the back of the cab, drilling holes where the bolts hold the hard-top frame to the cab. i will attatch this to my soft top fabric, probably using both a glue and a thread method. this will then be permanently attatched to the frame cut from the hard top. the canvas will have a zipper such that each side can be rolled up so there's only a canopy, but canvas will be permanently attatched to all the outter portion of the hard top which is left over so it has a nice clean look. in these roll-away sections will be windows of some nature. now, here's what i'm trying to figure out. i want to be able to use the back window glass from my tailgate, so i want to keep the back of the hard top so that the glass will roll up into it. however, this portion of the top needs to be removable, as when the top is rolled open so that it is in it's complete convertable state, because i don't want to have a big ass spoiler on the back of my truck. i'm not too sure how i want to go about making it removable. i'm wondering if the top is solid all the way thru, and maybe i should cut the back portion off parallel to the ground. then maybe i'd drill out a large section in the middle and put some type of metal tubing into it so that it can slip down into the remaining portion of the hard top, then a bolt will screw into it from a couple different sides to hold it into place (i'll try and draw up some diagrams later this week so this makes more sense). i don't know how i'd make the top detachable from this rear section so that it looks real clean. how should i sew the fabric together, and what should i use to make the seams weather proof? how should i attatch the windows, and what type of material should i use for windows? with this set up, i could run a simple H structure from the cab to the back remaining portion of the hard top which would support the top piece of canvas. the canvas will have straps to hold it secure to this lattice. to make it fully convertable, i will be able to roll this canvas forward and strap it down. the H lattice will be able to be taken apart with only a few bolts, and stowed in a storage box i will be building under my bed rails. taking down the support system will only take a matter of minutes in this construction, and will leave the bed rails looking nice and clean - no bracketry visible from the profile. that's all i can think of right now.... let's keep the chatter to the minimum in this thread, and try to conserve it for useful conversation.