Far too heavy (and expensive) for SOTA. Make a clone: Simple 3 band vertical (20m/17m/15m) and spend your money on things you cannot easily make.
That’s far too low for VHF antennas. As Ron says, they need to be up higher.
For 2m SSB, an HB9CV or a Moxon. The DK7ZB designs are very good and high performance. That 4ele linked to is ideal for SOTA. Be aware that Yagi design has moved on in leaps and bounds but there are many manufacturers/designs that are old and not worth making or buying. Gain of a Yagi is really a function of boom length and not the number of elements. Lots of elements looks good but makes it heavy and catches more wind!
Most important is that you need to let the SOTA community in your area know you will be QRV on 2m SSB so they are ready and listening or you may find 2m SSB a bit lonely.