If someone need PCB prototype assembly equipments, I think below is some suggestion. This line is from Beijing Glichn, it includes bench top reflow oven, table pick and place machine and PCB screen printer.
Some technical documents about the line.
Suggestion: Low-cost short-run, high-mix production & prototyping
Feature: Entry level production / prototyping at an affordable price
PCB working size 300*400mm;
Component application:0201, 0402, 0603, SOP ,BGA and others;
Reflow oven: bench top lead free solder SR352C, with computer interface;
Pick and place machine: table mounter M400 and vacuum suction DL100/DL200;
Screen printer: large size high precision screen printer SP40
Warranty: two years together spares
Total investment is about USD4000.
Above is simple description about PCB prototype assembly equipment; In Beijing Glichn S&T Development has more.