Found my manuals and docs! Now I know exactly what items I have and the manuals to go with....
Bolens G14 Model 1453 Serial # 0204127 Engine: Tecumseh HH140-160001
Bolens Hydraulic Lift Kit Model 18709
Bolens Mower Attachment 42" Model 18423
Bolens Snow Blade Attachment 42" Model 18532
Bolens 33" Tiller Attachment Model 18618
Brinly Cultivator Model CC-500
Brinly Hitch Model HH-105
Brinly Sleeve Hitch Moldboard Plow PP-51
Brinly Lawn Tender DT30 LT De-Thatcher Model DT300 LT
Brinly Lawn Tender SA-30 LT Spiker-Aerator Model SA-302 LT
Some large metal wagon, not sure of brand/model but it looks similar to a Brinly HDC-10 (no manual)
On the manuals side, I don't have the manual for the PP-51, instead I have the manual for the PP-1400 series (PP-1450). Anyone that wants that manual can have it. I see the PP-51 manual online as pdf, but I want an original so that my docs are complete. I located all the hardware above except the HH-105 hitch. I sure hope I can find that part, as I believe it's necessary for attaching the cultivator and moldboard plow.