So now I am back in "Wanna work on something 914" mode again.

It may have been discussed in the passed but could not find answer from thread serch.
I would like to widen both fron and rear thread for just looking. I would like to keep 4lug fuchs so considering adding wheel spacers for them.
Could I ask for advise if any of you have done it? If you have, which spacers and lug bolts have you had used for.
1. Spacers not recommend
2. Recommended spacer size for 4lug fuchs and source of parts.
3. Recommended lug bold size and source of parts.
Thank you for your advise in advance!