Loud Klein Rascal

After having this lying around for about a year, I pulled my finger out and finished it over the weekend. I haven't owned a MTB for a pretty long time, and have never used 1 x anything, so wasn't sure if everything was going to work. After yesterday's first outing, I can say that the Rascal is very fun to ride, and the 30 year old XT stuff shifts better than my modern SRAM Red! Ended up going for:

1 x 7 XT M095/M735 group - managed to find some good NOS stuff on ebay
Middleburn RS7/Uno chainset
NOS Dia Compe 987 Cantis
Got an LBS to build some Sun Ringle rims on NOS XT 737/738hubs

Some things I need to look at:

• Shorter stem as will mostly be used for casual city riding (all these retro quills seem very long and the Rascal geo seems quite stretched)
  
• Not sure about the bars
  
• Think the chain line is a bit wrong - have found shorter axles on ebay, but removal of the Klein PF BB concerns me
  
• May need a chain guide? Had no issues dropping off kerbs etc, but seems it might be a good idea anyway? This something I have no prior experience of.