2 T39 slims (bp102 loaded) and 2 Otop 12s (beta 12 loaded) will run you about 600 after plywood, and you can power both on a single crown xti 1000 (around 300 if you search hard). They’ll blow the crap out of your average ~100 person party, and will even be good to around 200 people with good bass coverage (if you built wider t39s, loaded with the 3012lf you could do more).
2x Jack 212s will run you about the same, but can be run on any amp that can put out at least 400 watts per channel at 4 ohms. standalones dont require the crossover processing (which makes things simpler) however you wont be as satisfied with your bass output (although it will pretty much demolish any commercial standalone cab)
I think you can borrow your friends speaker + stand (may be speaker Cable too.. I believe u already have it but all this stuff will be dirty when your party finish and most times you need to clean that alone LoLz… )
…Then u got 2-3 guys to help you watch& protect your audio system from a stoned peop;le in your house …