Returning to Vinyl


Now planning a return to vinyl listening after a nearly 40-year hiatus and need some basic help. Although I do still own a functional mid-fi system (Goldring GR1.2 TT with preinstalled arm, Goldring Elektra MM cart, Cambridge Duo phono pre), long gone are the battery-powered vibrating stylus cleaning brush, the Nitty Gritty record cleaning machine, the LAST LP treatment solution with the big wide application brush, and even the MHS archive-quality replacement sleeves. I know there are several cleaning machines on the market and am willing to spend something reasonable (<$1k), but beyond that I'm clueless.
Q1. How necessary is a cleaning machine for an occasional (say, 3x/mo.) vinyl listener with irreplaceable LPs?
Q2. If needed, which product delivers most bang for the buck? 
Q3. Same questions re stylus cleaning devices.
Q4. Same questions re record preservation treatments.
Q5. Tracking/alignment/pressure have not been checked or adjusted since acquisition despite two moves. Are there still shops performing these services? 

Advance thanks for all useful advice.
hickamore
Goldring Elektra Phono Cartridge Specifications
- Frequency response: 20Hz-20kHz ± 3dB
- Channel balance @ 1kHz: 2dB 
- Channel separation @ 1kHz: 20dB 
- Output voltage @ 1kHz,5cm/sec: 5mV±2dB 
- Static compliance: 16mm/N
- Equivalent tip mass: 0.7 mg
- Vertical tracking angle: 26°
- Stylus radius: Elliptical .0007 x .0003 (18µ x 7µ)
- Stylus type: Replaceable, Golding D152E stylus 
- Load resistance: 47k ohms
- Load capacitance: 150-400 pf
- Internal inductance: 560 mH
- Internal resistance: 700 ohms
- Weight: 4.2 g
- Mounting: 1/2 inch (12.7 mm) 
- Tracking force range: 1.5-3.0 g (2.0 g nominal)
Just as an aside. Streaming these days can be outstanding. It can be completely hassle free and truly audiophile quality. High end streamers produce outstanding bit streams with very reliable easy to use apps to manage them. But as in all things audio it takes carefully choosing equipment that is compatible and synergistic. Sounds like there are lots of opportunities for enjoying an improved system. I’d recommend concentrating on one leg at a time. Enjoy.
Regardless of price level, vinyl playback is most rewarding.
And whatever you put into it will give a great return on investment.
And even a modest system produces that organic sound that is digested in a way beyond digital.
BTW-best stylus cleaner that is also most easy to use is the Onzow Zerodust. $52 on Amazon.
So much shared experience here, and all for free, what a bonanza! Absorbing every word I'm reading from you veterans who know the way. Key accessories will have been ordered by this time Monday, and some old record spun to get me oriented.