I have everything ready now.
Just need to get some free time to assemble.
I see you've had a few Dales.
My renewed love for these is because my second MTB back in 1989 when I was in college was an SM500 that I purchased new.
Unfortunately that bike was stolen.
I think the most cost effective way is to buy a tatty one cheap with all the parts and restore it. Especially if you can paint yourself.
This one isn't costing me that much because I had most of the parts already as spares from my other SM600.