GL500i steering bearings

Noticed a definite front wheel wobble at low speeds, especially with no hands on the bars.

Read some posts about bearings, but had some real basic questions before I start.

1) is it worth just trying to tighten them first and see how it goes? Or should I just replace with a tapered set?

2) is there a full step by step on replacing them anywhere? Do I need any special tools?

3) any ideas on jacking front wheel up without a jack? Don't currently own a jack, but will get one if it's the best way to get the wheel off.

Thanks in advance
(I like pics, so figured others might enjoy thos one)