29k58 or 71 - which one to buy?

[sewtogetherbyb]

I'm looking at purchasing a Singer 29k and the shop that closed has 2 for sale. A 29k71 for $150 and a 29k58 for $200 both work well. I've researched the best I can on them both and read through various threads here on them most were from a few years ago so thought I'd ask as well. From what I can tell they seem pretty equal or am I missing something? I'm contemplating just offering them $300 for both, worst case one could always be used for parts. Any thoughts on this - get both or get one - if so which one? Appreciate the guidance/input.

[480volt]

In my neck of the woods (SF Bay Area) those would be extremely reasonable prices. I wouldn’t haggle, I’d buy both and keep whichever one performed better. 

[sewtogetherbyb]

Thank you. That's what I was thinking too but being a newbie to these particular machines needed another opinion. Thanks for the input, I appreciate and am on my way get them!