Using a triple chainset as a double.

Been looking for the most cost effective way to give my wife an easier climbing gear on her hybrid.

She currently has a 50-34 upfront and 12-32 (8 speed Claris) on the back, which was ok in London but not so good further north.

I've just had the idea of getting something like this https://www.amazon.co.uk/Shimano-TY501-Square-Speed-Chainset-FCTY501C888CLB/dp/B01HI6HAO2/ref=sr_1_1?dchild=1&keywords=sub+compact+chainset&qid=1606080882&quartzVehicle=778-1197&replacementKeywords=sub+chainset&sr=8-1 and setting it up to only use the middle and small rings. Would also likely change the cassette and chain at the same time as they have 3 years of wear on them now.

In a perfect world would go for a sub compact chainset but the bike is only worth about £100 and we will get her something different before too long, but need an interim solution.

Is this theoretically doable, or just a terrible idea?

Edit: She isn't one for sending it on descents so not too concerned about spinning out at the top end.

Having said that I've just found this - https://www.ebay.co.uk/itm/Shimano-Tourney-Chainset-TY501-2-with-Chainguard-46-30T-8-Speed-Black/254695954673?epid=24037851602&hash=item3b4d0fd8f1:g:-sIAAOSwpq9e6I0G

That’s basically what the Spa Cycles super compact chain set is, so sure it would work https://www.spacycles.co.uk/m8b0s109p3383/SPA-CYCLES-Super-Compact-Chainset-with-Zicral-Rings

The 46t/30t Shimano Tourney looks like a great solution to me. Such good value!

Seconding the tourney option.

I'm going to give the Tourney a go, will report back.

You already sound like you know what you're doing but I'll state the obvious just in case - do make sure you already have, or that you buy, the correct BB for that chainset: 123mm JIS square taper.