I mean, 24 installments of $83 per month is doable, but...
https://www.ebay.com/itm/Aerotech-24mm-Composite-Model-Rocket-Motor-EconoJet-F44-8-2pk/152776409811?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D50962%26meid%3Dcea8ea3914ac40ab8c36d8c2d2cfa53d%26pid%3D100675%26rk%3D2%26rkt%3D15%26mehot%3Dlo%26sd%3D183161099074%26itm%3D152776409811&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A50ec0058-571a-11e8-8aa0-74dbd1800cee%7Cparentrq%3A5c5ef5db1630a9cad0944884fff42d98%7Ciid%3A1
https://www.ebay.com/itm/Aerotech-24mm-Composite-Model-Rocket-Motor-EconoJet-F44-8-2pk/152776409811?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D50962%26meid%3Dcea8ea3914ac40ab8c36d8c2d2cfa53d%26pid%3D100675%26rk%3D2%26rkt%3D15%26mehot%3Dlo%26sd%3D183161099074%26itm%3D152776409811&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A50ec0058-571a-11e8-8aa0-74dbd1800cee%7Cparentrq%3A5c5ef5db1630a9cad0944884fff42d98%7Ciid%3A1