I went low tech out of frustration and honestly love the hobby more that way. I have a Matheson Model 8-350 regulator, two CO2 tanks, and a Greenleaf Drop Checker. I have not used them for seven years but fairly certain everything still works, don’t see why it wouldn’t, but you are free to test them before buying if you’d like. Asking $100 but will consider best offer. Located in Leesburg, VA.